Refactor out Non API code

[DomGarguilo]

Fixes #53

Refactored out non-api code.

In most cases the imports were just being used to grab a String e.g. a class name. For those cases I just hardcoded a final String to use in their place.

[DomGarguilo]

I am still looking into how FastFormat might be refactored out. I know that String.format is a lot slower so wanted to get some feedback on if that is acceptable to use in this case or if something else should be done such as creating a method to reproduce the functionality of FastFormat.

[milleruntime]

Looks good. Thanks for looking into this! As for the FastFormat class, that is a quite useful utility. I am fine with leaving it as an exception. The easiest solution would be to just copy the class into testing since I doubt it will be changing any time soon.

[DomGarguilo]

The easiest solution would be to just copy the class into testing since I doubt it will be changing any time soon.

I went ahead and did that. All of the exceptions should be accounted for now.

[milleruntime]

Nice improvements!