* Introduce fast dispute game type

Avoids the need to change configuration to support fast withdrawals via fault proofs.

* e2e: Wait for game to become resolvable.

* Update kontrol snapshots.

* e2e: Set correct game type for proposer.

* challenger: Fast games are alphabet vm, not cannon.

* Set fast game clock duration to 0.

* Update snapshots again

* Use game type consistently.