Add support for persisting paired device information on CHIP controller

[pan-apple]

Problem

CHIP controller applications cannot persist paired device state across reboots.

Summary of Changes

CHIP Controller API did not provide a mechanism to save pairing state of a device/accessory.
This PR adds

• the key value persistent API
• updates CHIPController to use the API to store the state
• and, a mechanism to serialize, deserialize Pairing state.

This PR is one step towards fixing #2797

[github-actions]

Size increase report for "esp32-example-build"

File	Section	File	VM
chip-wifi-echo.elf	.flash.text	64	64
chip-wifi-echo.elf	.flash.rodata	8	8

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-wifi-echo.elf and ./pull_artifact/chip-wifi-echo.elf:

sections,vmsize,filesize
.debug_str,0,3444
.debug_line,0,2596
.debug_info,0,1318
.debug_loc,0,1276
.debug_abbrev,0,981
.debug_ranges,0,528
.strtab,0,77
.xt.prop._ZNSt8_Rb_treeIhSt4pairIKhN4chip18OptionalQRCodeInfoEESt10_Select1stIS4_ESt4lessIhESaIS4_EE14_M_create_nodeIJRKS4_EEEPSt13_Rb_tree_nodeIS4_EDpOT_$isra$255,0,76
.xt.prop._ZNSt8_Rb_treeIhSt4pairIKhN4chip27OptionalQRCodeInfoExtensionEESt10_Select1stIS4_ESt4lessIhESaIS4_EE13_M_clone_nodeINSA_11_Alloc_nodeEEEPSt13_Rb_tree_nodeIS4_EPKSE_RT_$isra$264,0,76
.debug_frame,0,72
.flash.text,64,64
.xt.lit._ZNK4chip8OptionalIyE5ValueEv,0,40
.symtab,0,32
.debug_aranges,0,24
.flash.rodata,8,8
[1 Others],0,-4
.xt.prop._ZN4chip16ReferenceCountedINS_28SecurePairingSessionDelegateEE7ReleaseEv,0,-12
.xt.prop._ZN4chip16ReferenceCountedINS_9Transport4BaseEE7ReleaseEv,0,-12
.xt.prop._ZN4chip8BufBound3PutEPKvj,0,-40
.xt.prop._ZNSt8_Rb_treeIhSt4pairIKhN4chip18OptionalQRCodeInfoEESt10_Select1stIS4_ESt4lessIhESaIS4_EE14_M_create_nodeIJRKS4_EEEPSt13_Rb_tree_nodeIS4_EDpOT_$isra$244,0,-76
.xt.prop._ZNSt8_Rb_treeIhSt4pairIKhN4chip27OptionalQRCodeInfoExtensionEESt10_Select1stIS4_ESt4lessIhESaIS4_EE13_M_clone_nodeINSA_11_Alloc_nodeEEEPSt13_Rb_tree_nodeIS4_EPKSE_RT_$isra$253,0,-76

[pan-apple]

@saurabhst, @jelderton, @BroderickCarlin do you have any feedback?

[pan-apple]

@saurabhst, @jelderton, @BroderickCarlin do you have any feedback?