Release for checkpoints

To release our checkpoints without hosting server or commercial storage, we make this release to upload our checkpoint files for Faster R-CNN on Tiny-DOTA dataset.
See README.md for testing our method by using the checkpoint files.

The below checkpoints are our baselines that we wrote in our paper.

1. Tiny_DOTA.pth: A basic Faster R-CNN on Tiny DOTA
2. Tiny_DOTA_Early_Fusion.pth: A Faster R-CNN model with Early Fusion module on Tiny DOTA without UEL
3. Tiny_DOTA_Late_Fusion.pth: A Faster R-CNN model with Late Fusion module on Tiny DOTA without UEL
4. Tiny_DOTA_C3Det.pth: A Faster R-CNN model with C3Det module on Tiny DOTA with UEL