Create react native release about verida-js

[tahpot]

@pkhien95 I have migrated the react native changes into the #react-native/develop branch as best as I can for now.

The branch structure is: main -> react-native/main -> react-native/develop

Here are my notes.

1. I didn't migrate the changes in schema.js. The code and dependencies don't appear to be used.
2. I used a different base64 encoding library in shim.js. We already have the did-jwt dependency that provides base64 encode / decode methods, so I wanted to avoid adding another dependency. Once you confirm this works you can remove my comment and the previous commented out code.
3. shim.js has typescript errors that you will need to fix.
4. package.json in datastore#react-native has a LOT more dependencies than I added. I specifically only added dependencies I could see being used. I expect all the dependencies in react-native and browser will require adding. There is also a lot of browserify, react-native-xxx and pouchdb-xxx dependencies I assume need to be added, but I wasn't 100% sure so I'll leave them to you.
5. I have also updated the README.md file to include instructions on how to initialise and use the library with an ethereum private key. When you get to that point, we can jump on a call.

[tahpot]

Closing this issue as it has moved to verida/client-rn#1