This PR adds gloas specific time basis points for validator duties
(attestation, aggregation, and sync contribution) and wires the
validator client to use them once `GloasForkEpoch` is active. For now,
`GloasForkEpoch` is set to far-future so behavior is unchanged until the
fork epoch is configured
Note to the rev: today sync message duty uses `waitOneThirdOrValidBlock`
which shares with attestation dead line, that's why sync message bps is
not used
14a4b97d57