Created unit tests for untested functions and classes. Some of them are still not complete and fail.
PharmacophoricPoint class was refactored, but its use remains the same. Finally, a lot of the files were reformatted to comply with python style guide.
Description
Created unit tests for untested functions and classes. Some of them are still not complete and fail. PharmacophoricPoint class was refactored, but its use remains the same. Finally, a lot of the files were reformatted to comply with python style guide.