Implement interactive tx construction protocol via `InteractiveTxConstructor`

Implement interactive tx construction protocol via `InteractiveTxConstructor`

This implements the interactive construction protocol described at
https://github.com/lightning/bolts/blob/78e5a6b066d3a8e235931dfc06aa325337874749/02-peer-protocol.md?plain=1#L92.

Our implementation includes a state machine with typed states and transitions
to ensure consumers have compile-time assurances that the protocol is upheld.

States are tracked as in the `StateMachine` enum and can take on all
possible states during the negotiation.

The states are further divided into two categories, namely by the two traits
they implement, either `ReceivedMsgState` or `SentMsgState`.

The defined `StateTransitions` enforce the transitions that `ReceivedMsgState`,
`SentMsgState`, and the `_TxComplete`s can go through.

Co-authored-by: Wilmer Paulino <9447167+wpaulino@users.noreply.github.com>
Co-authored-by: Duncan Dean <git@dunxen.dev>
Co-authored-by: Jurvis Tan <5944973+jurvis@users.noreply.github.com>