feat: surface low-level sequencer execution errors, fix itest flakes

feat: add sdk utils and corresponding tests

feat: Add audits folder

feat: add test scaffold for CrossChainProvider

feat: add CrossChainMessenger test scaffold and CrossChainERC20Pair API

Version Packages

Develop -> Master Release PR

go/proxyd: Allow string RPC IDs

Metadata:

- Fixes ENG-1768

Renamed op-exporter and added CI

itests: remove old sync-tests

The sync tests would cover syncing of replicas and verifiers.
The replica syncing is now covered in the integration tests
which lets us remove the sync tests.

feat: translate SDK API spec to TS types

feat: add base SDK package

ops: pass through start block height to dtl

Without this explicitly configured, the `ops` package
would hang on my machine. It was incorrectly using a start height
greater than the size of the L1 chain

integration-tests: fee too low/too high

fix: deployer dockerfile

feat: hardhat fork mode

Adds forking config to the `ethereumoptimism/hardhat` docker image.
This can be configured with the following env vars:

- `FORK_URL` - http provider of the remote node to fetch data from
- `FORK_STARTING_BLOCK` - block to start forking from, if left
  undefined it will use the tip

Without `FORK_URL` set, it will not run in forking mode

Also adds the ability to configure the gas price with:

- `GAS_PRICE` - defaults to 0, which was the previous behavior

Updates the integration tests to work when fees
are enforced by the sequencer. This allows for
integration test coverage of the cases where transactions
are rejected when fees are too low or too high.