[pallet-revive] implement the ref_time_left API (#6908)
This PR implements the ref_time_left API method. Solidity knows only a single "gas" dimension; Solidity contracts will use this to query the gas left. --------- Signed-off-by: xermicus <[email protected]> Signed-off-by: Cyrill Leutwiler <[email protected]> Co-authored-by: command-bot <>