Treadscan

Removed redundant compiler flags in setup.py, which were possibly the cause of building errors

Fixed bounding box issue, implemented new equalization methods

Fixed border extending during tread unwrapping

Cython unwrap (600x faster)

Refactorization, simplification of methods.

- Detector class is a little more granular now (background subtractor can be substituted).
- Removed Extractor class in favor of TireModel class.
- SegmentorRCNN now returns all discovered objects, it's up to the programmer to decide what to do with them.
- Annotator class became less bloated thanks to TireModel and removing old scripts.