* contracts-bedrock: create CrossL2Inbox

* contracts-bedrock: create ICrossL2Inbox

* contracts-bedrock: create tests for CrossL2Inbox

* contracts-bedrock: update CrossL2Inbox sol version to ^0.8.24

* contracts-bedrock: rename test to .t.sol ext

* contracts-bedrock: make snapshots

* contracts-bedrock: update semver-lock

* contracts-bedrock: drop snapshots for CrossL2InboxTest

* contracts-bedrock: update license for tests CrossL2Inbox

* contracts-bedrock: add CrossL2Inbox to predeploys

* contracts-bedrock: pin sol version of CrossL2Inbox to 0.8.25

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: add CROSS_L2_INBOX to predeploys

* contracts-bedrock: make slots internal in CrossL2Inbox

* contracts-bedrock: add custom errors to CrossL2Inbox

* contracts-bedrock: refactor tests for CrossL2Inbox

* contracts-bedrock: use TransientContext in CrossL2Inbox

* contracts-bedrock: fix L2Genesis test

* contracts-bedrock: minor tweaks to documentation in tests for CrossL2Inbox

* contracts-bedrock: relabel BLOCKNUMBER_SLOT to BLOCK_NUMBER_SLOT in CrossL2Inbox

* contracts-bedrock: update snapshots for CrossL2Inbox

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: improve documentation for CrossL2Inbox

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: fix tests for CrossL2Inbox

* contracts-bedrock: update modifier in CrossL2Inbox

* contracts-bedrock: drop arguments in custom errors for CrossL2Inbox

* contracts-bedrock: update snapshots for CrossL2Inbox

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: fix tests for CrossL2Inbox

* contracts-bedrock: remove redundant lines in CrossL2Inbox

* contracts-bedrock: add tests for CrossL2Inbox

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: minor improvements to tests for CrossL2Inbox

* contracts-bedrock: remove ENTERED_SLOT in CrossL2Inbox

* contracts-bedrock: remove CrossL2Inbox from isSupportedPredeploy

* contracts-bedrock: update semver-lock for CrossL2Inbox

* contracts-bedrock: update CrossL2Inbox with eip3074 specs

* contracts-bedrock: update tests for CrossL2Inbox with eip3074 specs

* contracts-bedrock: improve doc in tests for CrossL2Inbox

* contracts-bedrock: update snapshots for CrossL2Inbox

* contracts-bedrock: update semver-lock for CrossL2Inbox