CTPy-19 Classification statistics module - in prep for parallelization

Reorganized some scripts -- everything you do after initializing an experiment is in the analytics directory.  There is only one script for classification identification - not yet parallelized, but none of the thread pool stuff was working well (python has some issues on this front, I gather).  experiment tracking updated for postclassification stats, which is run by an appropriate script.

Ready for classification experiment.