Multi-sig support #27
Description
Is your feature request related to a problem? Please describe.
Multiple blockchains support multi-sig operations, drastically increasing possible levels of security.
Both the Beet and BeetEOS wallets do not support multi-sig operations.
Describe the solution you'd like
Share the results of signed operations with the user.
The user should be able to sign a multi-sig operation from a qr/json-file/deeplink prompt, not just via websockets.
Describe alternatives you've considered
Add beeteos-js support to the astro-ui, create a multi-sig operation signing page using existing functionality.
Alert the user that they're adding a mutli-sig account to their BeetEOS wallet.
Reject adding a multi-sig account to the BeetEOS wallet.
Additional context
The Bitshares BEET wallet doesn't support multi-sig accounts neither.