* Implement base instantiation of the ZeroEx proxy in foundry
and move TestZeroExFeature contract to the foundry mocks
* Migrate zero-ex tests to foundry
* Update copyright year
* Update contracts/zero-ex/tests/mocks/TestZeroExFeature.sol
Co-authored-by: Jacob Evans <jacob@dekz.net>
Co-authored-by: Jacob Evans <jacob@dekz.net>