Code standards

[jonpvandermause]

Adds PEP 8, documentation and testing standards to the FLARE documentation.

[dmclark17]

                     _==|            Ship it!
           _==|   )__)  |
             )_)  )___) ))
            )___) )____))_)
       _    )____)_____))__)\
        \---__|____/|___|___-\\---
^^^^^^^^^\   oo oo oo oo     /~~^^^^^^^
  ~^^^^ ~~~~^^~~~~^^~~^^~~~~~
    ~~^^      ~^^~     ~^~ ~^ ~^
         ~^~~        ~~~^^~