Payment channel implementation sketch Simplifications: - unidirectional paychans - no top ups or partial withdrawals (only opening and closing) TODO - in code TODOs - Tidy up - method descriptions, heading comments, remove uneccessary comments, README/docs - chnge module name to "channel"? - Find a better name for Queue - clarify distinction between int slice and abstract queue concept - write some sort of integration test - find nicer name for payout - add Gas usage - add tags (return channel id on creation) - refactor cmds to be able to test them, then test them - use custom errors instead of using sdk.ErrInternal - split off signatures from update as with txs/msgs - testing easier, code easier to use, doesn't store sigs unecessarily on chain - consider removing pubKey from UpdateSignature - instead let channel module access accountMapper - remove printout from tests when app initialised - refactor queue into one object