[BROKEN] Multi-Party Eltoo with bounded settlement

This approach is considered a compromise in scenarios where trustless watchtowers cannot be incorporated into the signing quorum directly. The optimal setup would involve having N counterparties, who form the consensus quorum for state updates, with an additional M > N slots allocated for state submission. However, it's acknowledged that each increment in N incurs additional costs in terms of vbytes and necessitates longer relative delay periods, highlighting the absence of a universally ideal solution. This balance between security and efficiency underscores the complex trade-offs involved in designing such systems.