[Silabs]Rework KVS keymap implementation.

[jmartinez-silabs]

Issues.
TC_RR_1.1 revealed a limitation with our kvs implementation. Testing the maximum number of fabrics and groups per fabric uses a high amount of keys to store. This caused our basic key mapping array, to utilize our nvm driver, to increase to size out of the capabilities of single object storage in our internal driver.

This PR mainly reworks our KVS Key map strategy to minimize the size of the keymap while also improving our total key count capacities.

• Add a migration for the kvs changes, so older device can maintain their persistent information
• Implement a migration manager to handle future migrations.
• Optimize some baseApplication code.

[github-actions]

PR #25503: Size comparison from ce07f52 to 3abbbf6

Full report (1 build for cc32xx)

platform	target	config	section	ce07f52	3abbbf6e	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	643465	643465	0	0.0
			(read/write)	203688	203688	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197088	197088	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930213	930213	0	0.0
			.debug_aranges	87336	87336	0	0.0
			.debug_frame	300024	300024	0	0.0
			.debug_info	20262928	20262928	0	0.0
			.debug_line	2657822	2657822	0	0.0
			.debug_loc	2800026	2800026	0	0.0
			.debug_ranges	282240	282240	0	0.0
			.debug_str	3023883	3023883	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105929	105929	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	378514	378514	0	0.0
			.symtab	256560	256560	0	0.0
			.text	535412	535412	0	0.0

[github-actions]

PR #25503: Size comparison from ce07f52 to 3bea7b3

Full report (1 build for cc32xx)

platform	target	config	section	ce07f52	3bea7b3	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	643465	643465	0	0.0
			(read/write)	203688	203688	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197088	197088	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930213	930213	0	0.0
			.debug_aranges	87336	87336	0	0.0
			.debug_frame	300024	300024	0	0.0
			.debug_info	20262928	20262928	0	0.0
			.debug_line	2657822	2657822	0	0.0
			.debug_loc	2800026	2800026	0	0.0
			.debug_ranges	282240	282240	0	0.0
			.debug_str	3023883	3023883	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105929	105929	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	378514	378514	0	0.0
			.symtab	256560	256560	0	0.0
			.text	535412	535412	0	0.0