Integrate DLT wallets into data pods

[KarlHRichter]

Enable the ability to integrate seamlessly with DLT and store DLT wallets in SOLID data pods. For example Blockchain impact wallets https://ixo.world/getixowallet/deliver, and Tangle wallets https://trinity.iota.org.

This requirement is not urgent, but will be a very useful to engage more users - who may also want to use DLT - by removing a trade-off choice with respect to distributed data solutions i.e. be able to seamlessly integrate SOLID/ Blockchain/ Tangle/ etc protocols and technologies without having to select one over the others.