Add clearer logging of exchange ids.

[bzbarsky-apple]

Exchange ids are scoped to the initiator, so a bare exchange id does
not uniquely identify he exchange. For now, just log with each id
whether we are the initiator or the responder, which should at least
help disambiguate that.

Problem

See above.

Change overview

See above.

Testing

No behavior changes, other than logging output.

[github-actions]

Size increase report for "gn_qpg-example-build" from 1d12139

File	Section	File	VM
chip-qpg6100-lighting-example.out	.text	220	220

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-qpg6100-lighting-example.out and ./pull_artifact/chip-qpg6100-lighting-example.out:

sections,vmsize,filesize
.debug_info,0,544
.debug_loc,0,330
.text,220,220
.debug_ranges,0,152
.debug_line,0,146
.strtab,0,52
.debug_frame,0,44
.symtab,0,32
[Unmapped],0,-220

Comparing ./master_artifact/chip-qpg6100-lighting-example.out.map and ./pull_artifact/chip-qpg6100-lighting-example.out.map:

BLOAT EXECUTION FAILED WITH CODE 1:
bloaty: unknown file type for file './pull_artifact/chip-qpg6100-lighting-example.out.map'

[github-actions]

Size increase report for "esp32-example-build" from 1d12139

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	220	220
chip-all-clusters-app.elf	.flash.rodata	64	64

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-all-clusters-app.elf and ./pull_artifact/chip-all-clusters-app.elf:

sections,vmsize,filesize
.debug_line,0,489
.debug_info,0,348
.flash.text,220,220
.debug_ranges,0,88
.debug_loc,0,68
.flash.rodata,64,64
.strtab,0,52
.debug_frame,0,20
.symtab,0,16
.riscv.attributes,0,3
[Unmapped],0,-284

[github-actions]

Size increase report for "nrfconnect-example-build" from 1d12139

File	Section	File	VM
chip-lock.elf	text	200	200
chip-lock.elf	rodata	56	60
chip-lock.elf	device_handles	8	8
chip-shell.elf	text	96	96
chip-shell.elf	rodata	40	44

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-lock.elf and ./pull_artifact/chip-lock.elf:

sections,vmsize,filesize
.debug_info,0,570
.debug_loc,0,376
text,200,200
.debug_line,0,154
.debug_ranges,0,152
rodata,60,56
.strtab,0,52
.debug_frame,0,44
.symtab,0,32
device_handles,8,8

Comparing ./master_artifact/chip-shell.elf and ./pull_artifact/chip-shell.elf:

sections,vmsize,filesize
.debug_info,0,436
.debug_loc,0,360
.debug_line,0,164
.debug_ranges,0,152
text,96,96
.strtab,0,52
rodata,44,40
.symtab,0,32

[bzbarsky-apple]

@LuDuda @Damian-Nordic @jepenven-silabs @jmartinez-silabs Please take a look?