WIP: GEOMESA 306, 305, 296, 295

This is a WIP branch for improvements to ingest, addressing some of the comments from last weeks meeting. Please post comments (but note that the readme will need to updated, I will do this soon). 
* Split off ingest from Tools class, to ensure case class does not reach max size.
* Updated geomesa bash script to properly pipe to ingest, and not split inputs containing spaces (G-306).
* Allowed User to optionally hash feature IDs.
* Added optional arguments for: maxShard, auths, visibilities, and indexSchemaformat
* Made changes to how successes vs failures are counted and logged in SVIngest
* Made checks to ensure maxShard and indexschemaformat could not be both set.
should not use this logic here... it's already captured in the AccumuloDataStore. Only call createSchema (sft, numShards) if they specify the num shards, else use createSchema(sft)