- Fix bug when destination invokes payment (wrong pubkeys in OP_RETURN - validation would fail)
- Added channelslist RPC
- Changed channelsinfo data to JSON format
- Changed gateways withdrawal flow
- Added txnotarizedconfirmed function to check if transaction is confirmed/notarized
- Fixed max number of inputs when adding in varuous CC functions
- Added TESTMODE to set CC confirmation tx to 2 blocks instead of 60
Split out methods to every module, apart from 'help' and 'stop' which
are implemented in rpcserver.cpp itself.
- This makes it easier to add or remove RPC commands - no longer everything that includes
rpcserver.h has to be rebuilt when there's a change there.
- Cleans up `rpc/server.h` by getting rid of the huge cluttered list of function definitions.
- Removes most of the bitcoin-specific code from rpcserver.cpp and .h.
Continues #7307 for the non-wallet.
