Put all process together to:
1. read in dat file
2. clean data file and change to csv format
3. import the csv file to MongoDB
Added a routine that can now read in any of the three project files,
gives them headers and creates three different collections.

When it gets the file name, it knows which Mongo Import String to use.

I also added a hollow query method which accepts a user-defined query
statement, but it doesn't do anything yet.

I have to flesh out the routine so it formats the query and reads the
database.