New wallet repo

[WhoSoup]

As part of the general cleanup process, we removed the factom/wallet folder from the factom repo in FactomProject/factom#144. This contains the wallet backend and needs to find a new home in either its own repo or this one.

[WhoSoup]

Track

• Whitelist feature for wallet needs to be remade: Whitelist feature for wallet factom#135
• RCD-e Rcd e factom#133

[PaulBernier]

This repo has been created: https://github.com/FactomProject/wallet