Started significant restructuring to make things more user friendly and to reduce redundant code.

Removed some test files that I was using to debug and performance-test
the basic components of my models. Moved some helper functions into
HelperFuncs.py that were redundant across ParVec.py and Word2Vec.py.
Now I'll get a general "model handler" setup that will allow
"user-friendly" training of a few particular model types that will be
handy to have around.