[Darwin] Implement multiple read and subscribe

[joonhaengHeo]

Fixes #25424

1. Implement multiple read attribute or event.
2. Implement multiple subscribe attribute or event.

[bzbarsky-apple]

This is very very close! Thank you for moving the code (made it much easier to review) and adding the tests!

The only real issue here that still needs to get sorted out is the memory leak on error in the read function.

[github-actions]

PR #25840: Size comparison from 76eaffc to 3619342

Increases (1 build for cc32xx)

platform	target	config	section	76eaffc	3619342	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	20326060	20328478	2418	0.0
			.debug_line	2687403	2687417	14	0.0
			.debug_loc	2838361	2838391	30	0.0
			.debug_str	3042379	3042559	180	0.0

Full report (1 build for cc32xx)

platform	target	config	section	76eaffc	3619342	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	643081	643081	0	0.0
			(read/write)	203848	203848	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197248	197248	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	933224	933224	0	0.0
			.debug_aranges	87760	87760	0	0.0
			.debug_frame	302028	302028	0	0.0
			.debug_info	20326060	20328478	2418	0.0
			.debug_line	2687403	2687417	14	0.0
			.debug_loc	2838361	2838391	30	0.0
			.debug_ranges	288040	288040	0	0.0
			.debug_str	3042379	3042559	180	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104393	104393	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	377626	377626	0	0.0
			.symtab	256832	256832	0	0.0
			.text	536568	536568	0	0.0

[github-actions]

PR #25840: Size comparison from 8809801 to d493f31

Decreases (2 builds for nrfconnect, qpg)

platform	target	config	section	8809801	d493f31	change	% change
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	text	804836	804832	-4	-0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1166568	1166560	-8	-0.0
			.text	613668	613660	-8	-0.0

Full report (6 builds for mbed, nrfconnect, qpg)

platform	target	config	section	8809801	d493f31	change	% change
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2466336	2466336	0	0.0
			.bss	215960	215960	0	0.0
			.data	5888	5888	0	0.0
			.text	1428980	1428980	0	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1173892	1173892	0	0.0
			bss	155557	155557	0	0.0
			rodata	132740	132740	0	0.0
			text	804836	804832	-4	-0.0
	all-clusters-minimal-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1119140	1119140	0	0.0
			bss	154713	154713	0	0.0
			rodata	109556	109556	0	0.0
			text	774228	774228	0	0.0
	all-clusters-app	nrf7002dk_nrf5340_cpuapp	(read only)	4	4	0	0.0
			(read/write)	1433952	1433952	0	0.0
			bss	135297	135297	0	0.0
			rodata	228784	228784	0	0.0
			text	775788	775788	0	0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1166568	1166560	-8	-0.0
			.bss	99308	99308	0	0.0
			.data	856	856	0	0.0
			.text	613668	613660	-8	-0.0
	lock-app	qpg6105+debug	(read/write)	1136688	1136688	0	0.0
			.bss	94452	94452	0	0.0
			.data	860	860	0	0.0
			.text	583784	583784	0	0.0

[bzbarsky-apple]

Fast-tracking platform-specific change with platform owner review.

[github-actions]

PR #25840: Size comparison from 8809801 to 995d77f

Full report (3 builds for mbed, qpg)

platform	target	config	section	8809801	995d77f	change	% change
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2466336	2466336	0	0.0
			.bss	215960	215960	0	0.0
			.data	5888	5888	0	0.0
			.text	1428980	1428980	0	0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1166568	1166568	0	0.0
			.bss	99308	99308	0	0.0
			.data	856	856	0	0.0
			.text	613668	613668	0	0.0
	lock-app	qpg6105+debug	(read/write)	1136688	1136688	0	0.0
			.bss	94452	94452	0	0.0
			.data	860	860	0	0.0
			.text	583784	583784	0	0.0

[bzbarsky-apple]

@joonhaengHeo Thank you for the fix, and your patience!