Review Csv-Driver products

[SpencerFleming]

Before I say this epic is complete I want to make sure there are no glaring mistakes, and I also need to put some time into bug testing and stress testing the code.

Quality Control goals:

• No unused lines of code
• Formatting is satisfactory
• Notes have been taken on where refactoring of this along with LidarDriver may be useful
• All functions and classes that aren't unit testable are exhaustively listed somewhere
• CSVs are proven to be accurate (I may look into how GSuite may be able to help with this)
• Program runs at least as fast as geotiff-driver, and uses at most the same amount of memory.

[SpencerFleming]

Functions in LidarDriver aren't unit tested. One of them just calls a function that is, and the other is a variant of fit_data that I'm still working on.