API endpoint for adding keys to existing accounts

[nanuuki]

#235 added the possibility for new accounts to have multiple keys. Changing the value does not affect existing accounts, and thus an endpoint for manually "syncing" the number of keys for given accounts could be useful.

[sheerryy]

@nanuuki If you guys can give any ETA on this issue? or provide any way to add keys for an existing account. It would be a massive help for my app usecase.

[nanuuki]

@sheerryy Unfortunately I can't give any hard ETA, but this feature is currently under development.

[sheerryy]

@nanuuki Any update on this issue?