wallet import and export

[TimoGlastra]

Add feature to import and export wallet.

First iteration should just import / export the indy wallet. Next iterations could focus on more interoperable data format

RN indy sdk code already available here: AbsaOSS/rn-indy-sdk#57. Should be merged into indy-sdk-react-native

[standlove]

Hi, @TimoGlastra

Is there any plan when this can be completed?

Thanks

[TimoGlastra]

Hi @standlove,

would love to get this done!

If you want to help out, we still need to test the work from AbsaOSS/rn-indy-sdk#57 on iOS and then make a PR to https://github.com/hyperledger/indy-sdk-react-native. Once that is done, adding the functionality to the framework should be trivial.