* Fixes related to Prague execution requests
Turn out the specs are changed:
- WITHDRAWAL_REQUEST_ADDRESS -> WITHDRAWAL_QUEUE_ADDRESS
- CONSOLIDATION_REQUEST_ADDRESS -> CONSOLIDATION_QUEUE_ADDRESS
- DEPOSIT_CONTRACT_ADDRESS -> only mainnet
- depositContractAddress can be configurable
Also fix bugs related to t8n tool
* Fix for evmc
This is a minimal set of changes to make things work with the new types
in nim-eth - this is the minimal PR that merely resolves
incompatibilities while the full change set would include more cleanup
and migration.