Add the `priceoraclerpc`, `rfqrpc`, and the `tapchannelrpc` JSON
callbacks to the litclient's `Registrations` array. This allows the
litclient to use the rpc functions contained in these JSON callbacks.
Initialise an instance of the status manager in LightningTerminal.
Register its gRPC and REST endpoints and also add its method to the set
of LiT whitelisted permissions.
Add the `taprpc`, `assetwalletrpc`, `mintrpc` and the `universerpc` JSON
callbacks to the litclient's `Registrations` array. This allows the
litclient to use the rpc functions contained in the JSON callbacks.
This commit adds a new litclient package which can hold anything that
LiT clients may want to import. In this commit, we add and export a list
of JSON call back registration functions that a client will have access
to when using Lit.
