Add the ability to print help text for clusters to chip-tool.

[bzbarsky-apple]

Also moves the "subscriptions" commands, which are not dependent on ZAP in any way, out of generated stuff.

[github-actions]

PR #26392: Size comparison from 3200016 to 7c62a2f

Increases (1 build for linux)

platform	target	config	section	3200016	7c62a2f	change	% change
linux	chip-tool-ipv6only	arm64	(read only)	12200732	12201148	416	0.0
			.rodata	568128	568160	32	0.0
			.text	9863908	9864292	384	0.0

Decreases (1 build for cc32xx)

platform	target	config	section	3200016	7c62a2f	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	19603115	19603114	-1	-0.0

Full report (6 builds for cc32xx, linux, mbed, qpg)

platform	target	config	section	3200016	7c62a2f	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	604866	604866	0	0.0
			(read/write)	204156	204156	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197568	197568	0	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	957098	957098	0	0.0
			.debug_aranges	101104	101104	0	0.0
			.debug_frame	341416	341416	0	0.0
			.debug_info	19603115	19603114	-1	-0.0
			.debug_line	2666235	2666235	0	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1488792	1488792	0	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	94291	94291	0	0.0
			.debug_str	3108084	3108084	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104346	104346	0	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	482872	482872	0	0.0
			.symtab	287120	287120	0	0.0
			.text	498396	498396	0	0.0
linux	chip-tool-ipv6only	arm64	(read only)	12200732	12201148	416	0.0
			(read/write)	745112	745112	0	0.0
			.bss	34392	34392	0	0.0
			.data	3008	3008	0	0.0
			.data.rel.ro	686848	686848	0	0.0
			.dynamic	560	560	0	0.0
			.got	15664	15664	0	0.0
			.init	24	24	0	0.0
			.init_array	216	216	0	0.0
			.rodata	568128	568160	32	0.0
			.text	9863908	9864292	384	0.0
	thermostat-no-ble	arm64	(read only)	2524596	2524596	0	0.0
			(read/write)	145784	145784	0	0.0
			.bss	56376	56376	0	0.0
			.data	1784	1784	0	0.0
			.data.rel.ro	78096	78096	0	0.0
			.dynamic	560	560	0	0.0
			.got	5448	5448	0	0.0
			.init	24	24	0	0.0
			.init_array	432	432	0	0.0
			.rodata	129848	129848	0	0.0
			.text	2130448	2130448	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2494848	2494848	0	0.0
			.bss	216296	216296	0	0.0
			.data	5144	5144	0	0.0
			.text	1457532	1457532	0	0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1167816	1167816	0	0.0
			.bss	99632	99632	0	0.0
			.data	856	856	0	0.0
			.text	614916	614916	0	0.0
	lock-app	qpg6105+debug	(read/write)	1137176	1137176	0	0.0
			.bss	94784	94784	0	0.0
			.data	852	852	0	0.0
			.text	584272	584272	0	0.0

[github-actions]

PR #26392: Size comparison from 3200016 to f39e477

Decreases (1 build for cc32xx)

platform	target	config	section	3200016	f39e477	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	19603115	19603114	-1	-0.0

Full report (1 build for cc32xx)

platform	target	config	section	3200016	f39e477	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	604866	604866	0	0.0
			(read/write)	204156	204156	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197568	197568	0	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	957098	957098	0	0.0
			.debug_aranges	101104	101104	0	0.0
			.debug_frame	341416	341416	0	0.0
			.debug_info	19603115	19603114	-1	-0.0
			.debug_line	2666235	2666235	0	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1488792	1488792	0	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	94291	94291	0	0.0
			.debug_str	3108084	3108084	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104346	104346	0	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	482872	482872	0	0.0
			.symtab	287120	287120	0	0.0
			.text	498396	498396	0	0.0

[github-actions]

PR #26392: Size comparison from 3200016 to 55013ee

Increases (1 build for cc32xx)

platform	target	config	section	3200016	55013ee	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	(read only)	604866	605066	200	0.0
			(read/write)	204156	204164	8	0.0
			.bss	197568	197576	8	0.0
			.debug_abbrev	957098	957621	523	0.1
			.debug_aranges	101104	101136	32	0.0
			.debug_frame	341416	341512	96	0.0
			.debug_info	19603115	19609712	6597	0.0
			.debug_line	2666235	2666606	371	0.0
			.debug_loclists	1488792	1489165	373	0.0
			.debug_rnglists	94291	94315	24	0.0
			.debug_str	3108084	3108961	877	0.0
			.rodata	104346	104362	16	0.0
			.strtab	482872	483384	512	0.1
			.symtab	287120	287328	208	0.1
			.text	498396	498580	184	0.0

Full report (1 build for cc32xx)

platform	target	config	section	3200016	55013ee	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	604866	605066	200	0.0
			(read/write)	204156	204164	8	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197568	197576	8	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	957098	957621	523	0.1
			.debug_aranges	101104	101136	32	0.0
			.debug_frame	341416	341512	96	0.0
			.debug_info	19603115	19609712	6597	0.0
			.debug_line	2666235	2666606	371	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1488792	1489165	373	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	94291	94315	24	0.0
			.debug_str	3108084	3108961	877	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104346	104362	16	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	482872	483384	512	0.1
			.symtab	287120	287328	208	0.1
			.text	498396	498580	184	0.0