GEOMESA-72,224,225 Geomesa-tools

Refactor of Ingest command to support CSV/TSV files with WKT geometries.
Tools for export, explain, create, delete, and list features
Ok, explain this class.  I don't get it.  Is it a scopts thing?  If so, comment on it so that confused developers know what's up. 

Also, consider a more descriptive name.