GEOMESA-349, 324 Create TAR-ball for distributing GeoMesa & GeoMesa tools' script should be filtered resource

Added a new module, geomesa-assemble, to take care of assembling GeoMesa into a tarball.
Also added symlinks in an Ant job for each library to handle different versions for the future.
I've changed it to not do that for the TAR-ball, but every module has accumulo1.x appended to its name, and I can't figure out a clean way of removing that.