feat: adds op-proposer support

[zhwrd]

Description

Adds op-proposer support back in preparation for adding op-challenger support. We need proposer to make proposals to test challenger functionality.

The launcher supports a few config params:

{
  "image": "",
  "extra_params": [],
  "game_type": 1,
  "proposal_interval": "10m",
}

Changes

• Adds an l2_num param to l2, network participant launchers so we can index into the deployment state to get per-chain addresses
• Makes proposer parameters consistent with batcher
• Updates proposer to use dispute game factory