Solve 0x/f410 addresses for non-Ethereum actors

[maciejwitowski]

At the moment it's no possible to send funds from Metamask to f1/f3 addresses. This is a gap we would like to address. The potential solutions range from some kind of mapping between f1/f3 and their f4 to a form of Account Abstraction.

[Stebalien]

Unfortunately, f4 isn't sufficient, it would need to be f410 specifically.

We've discussed several options in the past:

1. Provide some way to send to an f410 address then "bind" it to an existing account.
2. Provide some way to "puppet" an f410 account from an f1 account.