Open a head between Hydra core members and test out the new functionality

[v0d1ch]

Within a group of 3+ people, we want to open a head to validate thte incremantal commit feature scenarios manually:

• Can commit to an open Head
  • no matter what is currently available on L2 (also empty head)
• Can commit and immediately close with the same snapshot
• Can do multiple increments one after another
• Can do multiple commits and decommits in sequence as long as decommitted UTxO are consistent
• Can commit and decommit the same UTxO should result in the same open Head UTxO
• Cannot commit while another decommit is pending
• Cannot decommit funds you don't own
• Cannot commit funds you don't own (to submit a deposit we need a proper sig)
• Can decommit everything from the Head
• Can process L2 transactions of independent UTxO while commit is happening.
• Cannot commit same UTxO in two Heads
  • specially in presence of rollbacks (due to network partition)
  • possible interactively?
• Can close and fanout while commit is pending
  • i.e. when someone did not submit incrementTx
  • either funds did not get committed at all or reimbursed by fanout (in my case funds got stuck in the deposit contract thus this issue Enable recovering in closed state too #1812 )
  • possible interactively?.

We are going to use a recent, but unreleased version of Hydra for this