GEOMESA-281 Create a strategy decider function

refactored to create a Decider that decides on Strategy (attribute index, spatiotemporal index or id index)
Strategy executes the query
this will be the framework upon which more complicated cost analysis of query planning is based
Yeah, that would be good. You could also move the check for the table format into the query planner and just pass a boolean to the Decider method, then testing would be even easier.