JSON store to import/export configurations

[GetPsyched]

Aiming at two use cases for this:

1. Sharing configurations
2. Declarative management of configurations

Not much to detail on this, but obligatory ping to @Theaninova since anything of this sort must be inter-operable among all official CC interfaces

[Raymo111]

We have a JSON format that does this used by device manager backups, you can try and support that format.

See https://github.com/CharaChorder/DeviceManager/blob/bf490ba823b5d06e5ed7b34c5e7dcc862b197fc5/src/lib/share/chara-file.ts and related files for reference.

[GetPsyched]

Awesome, thanks for the reference!