Move Element-adapter-firestore to element-lib

[gjgd]

this should live here

[OR13]

I'm not sure I agree.

The lib should implement only the adapters that are needed for web / nodejs out of the box. custom adapters should be built as seperate npm modules, like they are in pouchdb...

https://pouchdb.com/adapters.html

[gjgd]

I think it would be convenient to have a good choice of adapters in the element-lib

[OR13]

yes I agree, do we think that Firestore (a closed source no sql data base that is difficult to migrate away from) should be bundled with element lib? I'd prefer to see RXDB Adapter and a couchdb adapter that works in both the browser and the backend server.

I don't want to bundle anything with element-lib that does not run in both the web and node javascript environment or that leads to vendor lockin.