In order to support the full range of on-chain functionality, including
importing watch-only accounts in the watch-only instance, we need to
forward some calls like creating new addresses or importing accounts to
the remote signing instance.
To make it possible to supply our own implementation of a secret key
ring, we extract that part from the chain control and split the whole
chain control creation into two parts.
With this commit we extract the wallet creation/unlocking and
initialization completely out of the main function. This will allow us
to use custom implementations in the future.
We move some of the wallet related functions into the new file that
houses the new customizable implementations for some of our interfaces.
Since the next customizable interface will be the wallet, we move those
wallet and chain backend related helper functions.
NOTE: This is a pure code move.
As a preparation for making more and more implementation details
configurable, we add a new ImplementationCfg struct that houses all the
interfaces that can be defined externally.
