Move IAS Zone Client Plugin callbacks into src/app/ias-zone-client

[vivien-apple]

Problem

#3464 does not have any informations about plugins and will not generate definitions or stubs for the IAS Zone Client methods.

Summary of Changes

• Move IAS Zone Client plugin callbacks into src/app/clusters/ias-zone-client
• Remove the related definitions/stubs from gen/clusters-callback-stubs.c

[github-actions]

Size increase report for "esp32-example-build" from eda6980

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	-52	-52

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
.shstrtab,0,3
.xt.prop._ZN4chip8Encoding12LittleEndian7Write32ERPhj,0,1
.debug_loc,0,-14
.debug_aranges,0,-16
.debug_ranges,0,-16
.debug_abbrev,0,-20
.symtab,0,-32
.flash.text,-52,-52
.debug_frame,0,-72
.debug_line,0,-107
.strtab,0,-131
.debug_info,0,-306
.debug_str,0,-346