* Refactor location of all data files to include a subdirectory
for the mod version
* Update the BaseModel class to allow models to load themselves from
any text file (whether JSON or CG)
* Refactor ModPack & ModVersion to move the laoding functionality in
one into the other (and use the new stuff in BaseModel)
* Move the parser versions into a new subdirectory which allows for
future additional parsers
* Revert the local storage change as it ties model objects to global
state and makes testing impossible. It will be necessary to redo
that feature differently
* Refactor the parser versions to move V1 into its own set of files