Soloseng/dynamically-fetch-epochmanagerenabler-address

[soloseng]

Description

• Dynamically fetch the epochManagerEnabler address from the registry. This helps by not having to hardcode the address, as it would require some modification of our deploy scripts.

• Dynamically fetch carbonOffsettingPartner address from epochRewards contract. This avoids having two different places where the address can be set.

updated registry.

Other changes

removed onlyL1 modifier from EpochRewards contract. This allows governance to continue optimizing rewards distribution and updating allocated fractions.

Tested

unit test implemented by #11191

Related issues

• Fixes https://github.com/celo-org/celo-blockchain-planning/issues/603

[martinvol]

I think you just need to add epochManagerInitializer to the registry in the tests and that'd be ready to go