Enrico barbieri1997/0.0.0 wip core structure

[EnricoBarbieri1997]

First implementation of core features listed in the hackmd document. This branch includes:

• Query the chain using cosmjs
• Sending RPC (send, delegate, undelegate, redelegate, vote, claim) using cosmjs
• Connect to WalletConnect enabled Dapps
• Store and retrieve securily stored wallets