ESP32: Read WiFi Network Diagnostics at runtime

[sweetymhaiske]

Problem

• Actual value from the platform is not populated at runtime for WiFi Network diagnostics attributes.

Change overview

• Read WiFi Network Diagnostic attributes from a platform at runtime

Testing

• All clusters app is compiled and checked using python controller.

[bzbarsky-apple]

@sweetymhaiske Please address the restyle issues so pullapprove will request reviews?

[sweetymhaiske]

@sweetymhaiske Please address the restyle issues so pullapprove will request reviews?

Done.

[github-actions]

Size increase report for "esp32-example-build" from 52b4ac6

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	236	236

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_info,0,12110
.debug_line,0,862
.debug_loc,0,822
.debug_str,0,754
.strtab,0,753
.debug_ranges,0,248
.flash.text,236,236
.debug_frame,0,196
.symtab,0,160
.debug_abbrev,0,132
.debug_aranges,0,40
.shstrtab,0,-1
[Unmapped],0,-236

[bzbarsky-apple]

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

[woody-apple]

@mrjerryjohns @saurabhst @andy31415 @Damian-Nordic @jelderton ?