feat: support Firebase Remote Config

[robingenz]

trafficstars

Is your feature request related to a problem? Please describe:

Firebase Remote Config is not currently supported.

Describe the solution you'd like:

Add a Firebase Remote Config plugin.

Describe alternatives you've considered:

Additional context:

[HeikoKanzler]

+1

[tlebeitsuk]

+1

[carlossk]

it would be great to have this plugin

[robingenz]

Anyone want to test the new plugin? I would like to get some feedback.

npm i @capacitor-firebase/[email protected]

Docs: https://github.com/capawesome-team/capacitor-firebase/blob/feat/issue-9/packages/remote-config/README.md