* Each test folder now copies files into its own test directory
* Change gitignore due to dst dir changes
* Make sure logger.tree is called for every directory
- The tests now automatically run depending on whether you have the dependencies
installed, instead of failing and throwing exceptions.
- CONTRIBUTING.md has more information on how to run the tests.
- When the tests run, they will save their logs to /test_logs instead
of printing them so you can read them later.
- Change names of source file directories to make them more descriptive