GitLab

* [WIP]
*added stanford_cars

* [WIP]
added stanfordCars to docs

* [WIP]
minor edits

* [WIP]
minor edits

* edited StanfordCars class

* Adding Testcase for stanford cars

* Added Testcase for stanford cars

* Added Testcase for stanford cars

* minor edit

* made changes as per the suggestions

* fixed typo in naming stanford_cars.py

* cars_meta.mat file will be created in test

* Some cleanups

* Sigh

* don't convert to strings
Co-authored-by: Nicolas Hug <nicolashug@fb.com>