[Feature Request] Migrate loans between addresses

[gmondok]

Sometimes people wish to move addresses but there's no way to do that on AAVE without first closing your loans and withdrawing which is very inconvenient and expensive.

A simple move address button would be very helpful. I haven't yet gone through all the contracts to see where this exists but it should mostly be as simple as just updating the mapping of address with their deposits and open loans and moving the aTokens to that new address.