Research client binary protocol to reduce overhead of text protocol used by CrossEngineStep

As of now CrossEngineStep leverages text protocol and uses heavy string to int conversions that contributes up to 30% of CPU time used(see the perf record screen attached)
There is binary protocol feature of MariaDB/MySQL client protocol that potentially enables to skip costly str->int conversions.
This issue covers investigation if binary protocol can reduce overhead imposed by str->int conversion for numeric SQL datatypes.