feat(keyring-eth-mpc): add MPC keyring v2 support

[ccharly]

Scaffolding everything for the MPC keyring so we can start doing some wiring/integration without the actual proper implementation yet (keyring builder registers + adding dependencies across the codebase).

Also added a v2 wrapper, so we can keep using :withKeyringV2* everywhere.

For now the v1 MPC keyring is just an empty shell exposing the same public interface than:

• feat: add Ethereum MPC keyring #627

[ccharly]

@metamaskbot publish-preview

[github-actions]

Preview builds have been published. See these instructions (from the core monorepo) for more information about preview builds.

Expand for full list of packages and versions.

{
  "@metamask-previews/account-api": "2.0.0-a84d76f",
  "@metamask-previews/hw-wallet-sdk": "1.0.0-a84d76f",
  "@metamask-previews/keyring-api": "24.1.0-a84d76f",
  "@metamask-previews/eth-hd-keyring": "15.0.0-a84d76f",
  "@metamask-previews/eth-ledger-bridge-keyring": "13.1.0-a84d76f",
  "@metamask-previews/eth-money-keyring": "4.0.0-a84d76f",
  "@metamask-previews/eth-mpc-keyring": "0.0.0-a84d76f",
  "@metamask-previews/eth-qr-keyring": "3.0.0-a84d76f",
  "@metamask-previews/eth-simple-keyring": "13.0.0-a84d76f",
  "@metamask-previews/eth-trezor-keyring": "11.0.0-a84d76f",
  "@metamask-previews/keyring-internal-api": "12.1.0-a84d76f",
  "@metamask-previews/keyring-internal-snap-client": "11.1.0-a84d76f",
  "@metamask-previews/keyring-sdk": "3.1.0-a84d76f",
  "@metamask-previews/eth-snap-keyring": "24.1.0-a84d76f",
  "@metamask-previews/keyring-snap-client": "10.0.0-a84d76f",
  "@metamask-previews/keyring-snap-sdk": "10.0.0-a84d76f",
  "@metamask-previews/keyring-utils": "5.0.0-a84d76f"
}

[ccharly]

@metamaskbot publish-preview

[github-actions]

Preview builds have been published. See these instructions (from the core monorepo) for more information about preview builds.

Expand for full list of packages and versions.

{
  "@metamask-previews/account-api": "2.1.0-b143371",
  "@metamask-previews/hw-wallet-sdk": "1.0.0-b143371",
  "@metamask-previews/keyring-api": "24.1.0-b143371",
  "@metamask-previews/eth-hd-keyring": "15.0.0-b143371",
  "@metamask-previews/eth-ledger-bridge-keyring": "13.1.0-b143371",
  "@metamask-previews/eth-money-keyring": "4.0.0-b143371",
  "@metamask-previews/eth-mpc-keyring": "0.0.0-b143371",
  "@metamask-previews/eth-qr-keyring": "3.0.0-b143371",
  "@metamask-previews/eth-simple-keyring": "13.0.0-b143371",
  "@metamask-previews/eth-trezor-keyring": "11.0.0-b143371",
  "@metamask-previews/keyring-internal-api": "12.1.0-b143371",
  "@metamask-previews/keyring-internal-snap-client": "11.1.0-b143371",
  "@metamask-previews/keyring-sdk": "3.1.0-b143371",
  "@metamask-previews/eth-snap-keyring": "24.1.0-b143371",
  "@metamask-previews/keyring-snap-client": "10.0.0-b143371",
  "@metamask-previews/keyring-snap-sdk": "10.0.0-b143371",
  "@metamask-previews/keyring-utils": "5.0.0-b143371"
}