Packaging of repo

[tylerbarna]

There's a lot of functionality that could probably be abstracted into an importable python package, but this would have to occur after #2 is addressed or else it won't be particularly useful. This would also make it easier to merge nmma_fitter into nmma main eventually

[tylerbarna]

Some of the early lines of stats.py (when compiling the list of candidate directories and whatnot) would be problematic for this, but could be addressed by adding arguments to various functions calling a new function that generates all these lists/arrays/dictionaries if there is no argument with the required info isn't passed. Fairly easy rewrite, but probably won't implement until turning the repo into a package is more seriously worked on

[tylerbarna]

Similarly, see Issue #18