Evaluate processing outbox by parsing mysql binlog

[rhinof]

Evaluate a more robust way of relaying messages from the outbox by using mysql binlog. the approach is described here: https://medium.com/@infinity.jacksparrow/how-to-deal-with-mysql-binlog-using-golang-with-examples-49c36124b105

[rhinof]

We will probably need to provide a better response time for request/reply scenarios originating from the RPC method. this might be a way to do so as I suspect this will provide a quicker relay time than the current method of polling to outbox table for changes.