Add getMessageFeeTokenID method to BaseInteroperabilityMethod

[ishantiw]

Description

Add getMessageFeeTokenID method to BaseInteroperabilityMethod

def getMessageFeeTokenID(chainID: ChainID) -> TokenID:
    # Check for direct channel
    if chainAccount(chainID) does not exist:
        chainID = CHAIN_ID_MAINCHAIN
    return channel(chainID).messageFeeTokenID

Acceptance Criteria

• Should have all the relevant unit tests

Additional Information

• Related LIP Update PR https://github.com/LiskHQ/lips/pull/148
• Depends on https://github.com/LiskHQ/lisk-sdk/issues/7565