Update some names in Dnssd to be more consistent across the board

[vivien-apple]

Problem

There is a lot of code duplicated into Discovery_ImplPlatform.cpp and the dnssd naming for methods and variables is not always consistent which makes it harder to read than what it should be.
The 2 methods that I have focused on in this PR are the Advertise methods, both for operation and commissionable nodes.

Change overview

• Update names so they are at least consistent
• Update Discovery_ImplPlatform.cpp code to benefit from those consistent names and use some macros to help readability.

Testing

I have locally checked that discovering the node over mdns is still successful.

[github-actions]

PR #13083: Size comparison from 91a1a5c to 543bb19

Increases (10 builds for efr32, nrfconnect)

platform	target	config	section	91a1a5c	543bb19	change	% change
efr32	lighting-app	BRD4161A	(read/write)	127348	127352	4	0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	rodata	108056	108120	64	0.1
		nrf52840dk_nrf52840+rpc	rodata	101476	101536	60	0.1
		nrf5340dk_nrf5340_cpuapp	rodata	102984	103044	60	0.1
	lock-app	nrf52840dk_nrf52840	rodata	103364	103424	60	0.1
		nrf5340dk_nrf5340_cpuapp	rodata	98324	98388	64	0.1
	pump-app	nrf52840dk_nrf52840	rodata	104704	104768	64	0.1
	pump-controller-app	nrf52840dk_nrf52840	rodata	102836	102896	60	0.1
	shell	nrf52840dk_nrf52840	rodata	78032	78096	64	0.1
		nrf5340dk_nrf5340_cpuapp	rodata	72336	72396	60	0.1

Decreases (16 builds for efr32, k32w, nrfconnect, qpg)

platform	target	config	section	91a1a5c	543bb19	change	% change
efr32	lighting-app	BRD4161A	(read only)	829820	829456	-364	-0.0
			.text	829812	829448	-364	-0.0
		BRD4161A+rpc	(read only)	817440	817084	-356	-0.0
			.text	817432	817076	-356	-0.0
	window-app	BRD4161A	(read only)	803228	802848	-380	-0.0
			.text	803220	802840	-380	-0.0
k32w	light	k32w061+release	(read/write)	648300	648296	-4	-0.0
			.text	564116	564112	-4	-0.0
	lock	k32w061+release	(read/write)	633048	633012	-36	-0.0
			.text	549188	549152	-36	-0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	(read/write)	935739	935579	-160	-0.0
			text	631728	631500	-228	-0.0
		nrf52840dk_nrf52840+rpc	(read/write)	922127	921963	-164	-0.0
			text	627040	626812	-228	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	859490	859326	-164	-0.0
			text	559164	558940	-224	-0.0
	lock-app	nrf52840dk_nrf52840	(read/write)	907871	907707	-164	-0.0
			text	609552	609324	-228	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	831798	831638	-160	-0.0
			text	537032	536808	-224	-0.0
	pump-app	nrf52840dk_nrf52840	(read/write)	912763	912587	-176	-0.0
			text	613104	612876	-228	-0.0
	pump-controller-app	nrf52840dk_nrf52840	(read/write)	905951	905787	-164	-0.0
			text	608300	608072	-228	-0.0
	shell	nrf52840dk_nrf52840	(read/write)	796271	796079	-192	-0.0
			text	532304	532048	-256	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	708906	708710	-196	-0.0
			text	449796	449544	-252	-0.1
qpg	lighting-app	qpg6105+debug	(read only)	531904	531804	-100	-0.0
			.text	526584	526484	-100	-0.0
	lock-app	qpg6105+debug	(read only)	503600	503484	-116	-0.0
			.text	498280	498164	-116	-0.0

Full report (31 builds for efr32, esp32, k32w, linux, mbed, nrfconnect, p6, qpg, telink)

platform	target	config	section	91a1a5c	543bb19	change	% change
efr32	lighting-app	BRD4161A	(read only)	829820	829456	-364	-0.0
			(read/write)	127348	127352	4	0.0
			.bss	125472	125472	0	0.0
			.data	1876	1876	0	0.0
			.text	829812	829448	-364	-0.0
		BRD4161A+rpc	(read only)	817440	817084	-356	-0.0
			(read/write)	144016	144016	0	0.0
			.bss	142040	142040	0	0.0
			.data	1976	1976	0	0.0
			.text	817432	817076	-356	-0.0
	window-app	BRD4161A	(read only)	803228	802848	-380	-0.0
			(read/write)	126288	126288	0	0.0
			.bss	124456	124456	0	0.0
			.data	1832	1832	0	0.0
			.text	803220	802840	-380	-0.0
esp32	all-clusters-app	c3devkit	(read only)	877064	877064	0	0.0
			(read/write)	1313042	1313042	0	0.0
			.dram0.bss	69784	69784	0	0.0
			.dram0.data	14220	14220	0	0.0
			.flash.rodata	175976	175976	0	0.0
			.flash.text	877064	877064	0	0.0
			.iram0.text	62254	62254	0	0.0
		m5stack	(read only)	937939	937939	0	0.0
			(read/write)	442144	442144	0	0.0
			.dram0.bss	74280	74280	0	0.0
			.dram0.data	34056	34056	0	0.0
			.flash.rodata	202800	202800	0	0.0
			.flash.text	932555	932555	0	0.0
			.iram0.text	122671	122671	0	0.0
k32w	light	k32w061+release	(read/write)	648300	648296	-4	-0.0
			.bss	76480	76480	0	0.0
			.data	1904	1904	0	0.0
			.text	564116	564112	-4	-0.0
	lock	k32w061+release	(read/write)	633048	633012	-36	-0.0
			.bss	76200	76200	0	0.0
			.data	1860	1860	0	0.0
			.text	549188	549152	-36	-0.0
linux	chip-tool-ipv6only	arm64	(read only)	6930700	6930700	0	0.0
			(read/write)	323633	323633	0	0.0
			.bss	54577	54577	0	0.0
			.data	1096	1096	0	0.0
			.data.rel.ro	208096	208096	0	0.0
			.dynamic	560	560	0	0.0
			.got	56160	56160	0	0.0
			.init	24	24	0	0.0
			.init_array	168	168	0	0.0
			.rodata	379476	379476	0	0.0
			.text	5863652	5863652	0	0.0
	thermostat-no-ble	arm64	(read only)	1993780	1993780	0	0.0
			(read/write)	143937	143937	0	0.0
			.bss	64321	64321	0	0.0
			.data	880	880	0	0.0
			.data.rel.ro	72000	72000	0	0.0
			.dynamic	560	560	0	0.0
			.got	3840	3840	0	0.0
			.init	24	24	0	0.0
			.init_array	288	288	0	0.0
			.rodata	128196	128196	0	0.0
			.text	1654112	1654112	0	0.0
mbed	all-clusters-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2334040	2334040	0	0.0
			.bss	189068	189068	0	0.0
			.data	5264	5264	0	0.0
			.text	1296616	1296616	0	0.0
	lighting-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2328616	2328616	0	0.0
			.bss	180896	180896	0	0.0
			.data	5544	5544	0	0.0
			.text	1291216	1291216	0	0.0
	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2301648	2301648	0	0.0
			.bss	179944	179944	0	0.0
			.data	5536	5536	0	0.0
			.text	1264248	1264248	0	0.0
	pigweed-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	1140008	1140008	0	0.0
			.bss	11756	11756	0	0.0
			.data	4368	4368	0	0.0
			.text	103392	103392	0	0.0
	shell	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2053688	2053688	0	0.0
			.bss	156972	156972	0	0.0
			.data	4864	4864	0	0.0
			.text	1016288	1016288	0	0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	(read/write)	935739	935579	-160	-0.0
			bss	118400	118400	0	0.0
			rodata	108056	108120	64	0.1
			text	631728	631500	-228	-0.0
		nrf52840dk_nrf52840+rpc	(read/write)	922127	921963	-164	-0.0
			bss	115444	115444	0	0.0
			rodata	101476	101536	60	0.1
			text	627040	626812	-228	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	859490	859326	-164	-0.0
			bss	116684	116684	0	0.0
			rodata	102984	103044	60	0.1
			text	559164	558940	-224	-0.0
	lock-app	nrf52840dk_nrf52840	(read/write)	907871	907707	-164	-0.0
			bss	117588	117588	0	0.0
			rodata	103364	103424	60	0.1
			text	609552	609324	-228	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	831798	831638	-160	-0.0
			bss	115900	115900	0	0.0
			rodata	98324	98388	64	0.1
			text	537032	536808	-224	-0.0
	pigweed-app	nrf52840dk_nrf52840	(read/write)	542351	542351	0	0.0
			bss	52588	52588	0	0.0
			rodata	50668	50668	0	0.0
			text	376892	376892	0	0.0
	pump-app	nrf52840dk_nrf52840	(read/write)	912763	912587	-176	-0.0
			bss	117496	117496	0	0.0
			rodata	104704	104768	64	0.1
			text	613104	612876	-228	-0.0
	pump-controller-app	nrf52840dk_nrf52840	(read/write)	905951	905787	-164	-0.0
			bss	117376	117376	0	0.0
			rodata	102836	102896	60	0.1
			text	608300	608072	-228	-0.0
	shell	nrf52840dk_nrf52840	(read/write)	796271	796079	-192	-0.0
			bss	109464	109464	0	0.0
			rodata	78032	78096	64	0.1
			text	532304	532048	-256	-0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	708906	708710	-196	-0.0
			bss	107352	107352	0	0.0
			rodata	72336	72396	60	0.1
			text	449796	449544	-252	-0.1
p6	all-clusters-app	default	(read/write)	2384624	2384624	0	0.0
			.bss	117260	117260	0	0.0
			.data	2544	2544	0	0.0
			.text	1342888	1342888	0	0.0
	light-app	default	(read/write)	2324008	2324008	0	0.0
			.bss	106152	106152	0	0.0
			.data	2384	2384	0	0.0
			.text	1282272	1282272	0	0.0
	lock-app	default	(read/write)	2296216	2296216	0	0.0
			.bss	105032	105032	0	0.0
			.data	2336	2336	0	0.0
			.text	1254480	1254480	0	0.0
qpg	lighting-app	qpg6105+debug	(read only)	531904	531804	-100	-0.0
			(read/write)	146936	146936	0	0.0
			.bss	86816	86816	0	0.0
			.data	1004	1004	0	0.0
			.text	526584	526484	-100	-0.0
	lock-app	qpg6105+debug	(read only)	503600	503484	-116	-0.0
			(read/write)	146940	146940	0	0.0
			.bss	85952	85952	0	0.0
			.data	952	952	0	0.0
			.text	498280	498164	-116	-0.0
	persistent-storage-app	qpg6105+debug	(read only)	106448	106448	0	0.0
			(read/write)	146938	146938	0	0.0
			.bss	36146	36146	0	0.0
			.data	288	288	0	0.0
			.text	101128	101128	0	0.0
telink	lighting-app	tlsr9518adk80d	(read/write)	830222	830222	0	0.0
			bss	87040	87040	0	0.0
			noinit	37160	37160	0	0.0
			text	578410	578410	0	0.0