Note: After the go module bump I can remove the replace statement here.

This places most of the files into a single folder.

bmon: Add package scaffolding for balance-monitor

feat: p2p sequencer addr

ci: Disable echidna jobs in CI

fix(specs): Add white bg to `batch-deriv-*.svg` images

op-heartbeat: add missing golang-lru module

ctp: delete ERC721Bridge from ctp

contracts-bedrock: more strict deploy checks

[op-node] Fix bug in batching retries

contracts-bedrock: remove dead config, fix misconfig

contracts-periphery: update version on test contracts

bmon: Add package scaffolding for balance-monitor

* Remove chain ops replace in go.mod

* Add waitForL1OriginOnL2 helper function

This makes it easier to wait for system config changes or deposits
to be included on L2.

* Add TestGasPriceOracleFeeUpdates

This test was initially written by Trail of Bits. I have modified
it to remove some helper functions & work with the new gas price
oracle configuration method (derived from L1 instead of L2).

* Add TestL2SequencerRPCDepositTx

This test was originally written by Trail of Bits. I modified it
to not use helper functions and work with the updated system.

* Add TestMixedDepositValidity

This test was originaly written by Trail of Bits. I modified the test to make
it work with the updated system & modified several components of the system
to make this test work. The largest change is now the premine is applied to
L2 in addition to L1.

* Add TestMixedWithdrawalValidity

This test was originally written by Trail of Bits. This modifies the test to
work with the new system.

* CI: Increase timeout for e2e tests

* CI: Enable parallel e2e tests again

The tests are stable enough & taking long enough without this flag that I think
it is worth making the tests parallel. We still have the option to run the
tests sequentially if we need the better output for debugging them.

* op-e2e: Increase timeout while waiting for withdrawal to finalize

* Address PR comments

Specifically strictly check the `SystemConfig` proxy
so that the correct storage is set.

Fixes a misconfiguration in the deploy script. The
decimals value was being used when the scalar should
have been used. The decimals value is now a protocol
constant, so it no longer needs to be configured. Remove
the value from the deploy config.

Ensure that the `unsafeBlockSigner` is in its own
storage slot so that its easy to do state proofs
against its value.

op-bindings: add test coverage of the L1 fee constants

Makes the contracts more lenient in the version
of solc that they can compile with, makes it easier
to begin porting the hardhat based tests to `foundry`.

Added the key responsible for unsafe block distrubtion
to the `SystemConfig` contract. This allows for the `op-node`
to read this value and know what peers to accept unsafe blocks
from.

`TestL1BlockSlots` will ensure that the values in the
committed storage layout matches the values that are
hard coded in `op-geth`. This is important to handle
because the storage layout may accidentally change in the
future. This will make it very obvious is there are
issues with the storage layout changing.

The NFT bridge tests have been ported to foundry
as part of the `contracts-bedrock` package. We can
now delete the NFT bridge code from `contracts-periphery`.

Note that the `OptimismMintableERC721Factory` will be a predeploy
when upgrading to bedrock, so we do not need a deploy script for it.
Its deploy artifact was migrated to `contracts-bedrock` so that
the existing impl can be tracked. The deployment artifacts of
the `L1ERC721Bridge` and its `Proxy` were also migrated to
`contracts-bedrock`.