Features can share a set of tables, and they do so by default.

This can be configured by setting a boolean on the SFT when creating the schema in the AccumuloDataStore.
*nodnods*  I like it.  Also, we can clean-up some code in AccumuloFeatureWriter.  Added https://geomesa.atlassian.net/browse/GEOMESA-344 and a comment linking to it.