Adds the required boilerplate code for the Gloas (Glamsterdam) hard fork. This allows PRs testing Gloas-candidate features to test fork transition.
This also includes de-duplication of post-Bellatrix readiness notifiers from #6797 (credit to @dapplion)
* First pass
* Add restrictions to RuntimeVariableList api
* Use empty_uninitialized and fix warnings
* Fix some todos
* Merge branch 'unstable' into max-blobs-preset
* Fix take impl on RuntimeFixedList
* cleanup
* Fix test compilations
* Fix some more tests
* Fix test from unstable
* Merge branch 'unstable' into max-blobs-preset
* Merge remote-tracking branch 'origin/unstable' into max-blobs-preset
* Remove footgun function
* Minor simplifications
* Move from preset to config
* Fix typo
* Revert "Remove footgun function"
This reverts commit de01f923c7.
* Try fixing tests
* Thread through ChainSpec
* Fix release tests
* Move RuntimeFixedVector into module and rename
* Add test
* Remove empty RuntimeVarList awefullness
* Fix tests
* Simplify BlobSidecarListFromRoot
* Merge remote-tracking branch 'origin/unstable' into max-blobs-preset
* Bump quota to account for new target (6)
* Remove clone
* Fix issue from review
* Try to remove ugliness
* Merge branch 'unstable' into max-blobs-preset
* Fix max value
* Fix doctest
* Fix formatting
* Fix max check
* Delete hardcoded max_blobs_per_block in RPC limits
* Merge remote-tracking branch 'origin/unstable' into max-blobs-preset
* Track time to early attester cache
* Add debug log for early attester cache
* Add mock-el command to lcli
* Revert beacon chain changes
* Tidy, fix compilation errors
* Add required flag
* Default to SYNCING response
* Hide flag