Start separating generated files in unique folder instead of inside the src/example tree

[andy31415]

Problem

ZAP generated files are in-tree and this has undesired sideffects:

• code review is harder as every change updates different distinct path. If zap updates are mixed with code updates, reviewers have to jump through files to filter out genreated vs non-generated files
• relative paths are used extensively and include odities (e.g. data_model generated has same file names as example generated making include order important) go easier unnoticed

Change overview

• created a 'zzz_generated' folder (for alpha-sorting to go at the end) for all example generated files. Explicitly named folders as 'zap-generated' instead of 'gen' to keep track of them easier in the future (a gen/include is used for build time include generation, would like zap to be explicitly different)
• added 'output folder' support in the regen all script (make all examples go to the zzz folder)
• Migrated examples and other builds to the new structure
• Used <....> includes instead of "..."

Testing

Verified that things build (except pump/pump-controller which does not build in ToT yet), CI will also validate things.
Checked that zap-regen-all does not change any output.

[todo]

order of includes is important here as the data model headers

connectedhomeip/src/app/chip_data_model.gni

Lines 207 to 217 in dd801a6

	# TODO: order of includes is important here as the data model headers
	# often overlap with the app include headers.
	#
	# Generated file name uniqueness would be very useful here (or have alternate
	# subdirectory paths)
	if (!_controller_model) {
	public_configs += [ "${chip_root}/src/controller/data_model:data_model_config" ]
	}
	}
	}

---

This comment was generated by todo based on a TODO comment in dd801a6 in #9124. cc @andy31415.

[github-actions]

Size increase report for "esp32-example-build" from 155d61f

File	Section	File	VM
chip-shell.elf	.flash.text	56	56

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

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

sections,vmsize,filesize
.debug_str,0,11
.debug_line,0,9

Comparing ./master_artifact/chip-pigweed-app.elf and ./pull_artifact/chip-pigweed-app.elf:

sections,vmsize,filesize

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

sections,vmsize,filesize
.flash.text,56,56
[Unmapped],0,-56

Comparing ./master_artifact/chip-bridge-app.elf and ./pull_artifact/chip-bridge-app.elf:

sections,vmsize,filesize
.debug_str,0,5
.debug_line,0,3

Comparing ./master_artifact/chip-ipv6only-app.elf and ./pull_artifact/chip-ipv6only-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-persistent-storage.elf and ./pull_artifact/chip-persistent-storage.elf:

sections,vmsize,filesize

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

sections,vmsize,filesize
.riscv.attributes,0,-2
.debug_line,0,-15
.debug_str,0,-15

Comparing ./master_artifact/chip-temperature-measurement-app.elf and ./pull_artifact/chip-temperature-measurement-app.elf:

sections,vmsize,filesize
.debug_line,0,225
.debug_str,0,223