Multi-wallet M2S and S2S transfers with faster speeds

[sergiy-skalelabs]

This is feature request ticket for future release(es). We do have M2S and S2S transfer directions in IMA Agent pumping messages from other chains into this one particular S-Chain. So all M2S and S2S transfers use same wallet/private key, This make them mutually dependent and unable to work fully parallel even if M2S and S2S run on different time frames inside different IMA Agents. Transfer delays may still happen when some IMA Agent is restarted and its PWA/busy state was lost and stuck as busy in other agents. Using different wallets in M2S and S2S transfers can resolve all mutual dependency issues.