[P] Reproducible Pytorch Implementation of "FixMatch" with trained models.

We release unofficial pytorch code for "FixMatch: Simplifying Semi-Supervised Learning with Consistency and Confidence,", which accepted in NeurIPS'20!! I found that some pytorch implementations are already released, but often fail to reproduce the results in the paper. We hope our implementation helps SSL researchers make their awesome projects! If you like our project, please use and make many issues, and mark the star!