Update dataset card with metadata, links and usage instructions

Update README.md

Update README.md

Delete SeeU45_train/goose_2

Delete SeeU45_train/goose_1

Delete SeeU45_train/giraffe

Delete SeeU45_train/bear_fish

Delete SeeU45_train/bird_1

Delete SeeU45_GT/goose_2

Delete SeeU45_GT/goose_1

Delete SeeU45_GT/giraffe

Delete SeeU45_GT/bird_1

Delete SeeU45_GT/bear_fish

upload dataset

Upload README.md

initial commit