RNGDet implementation (#11145)

* Add files via upload

* Rename train.py to train.py

* Delete official/projects/RNGDET directory

* Add files via upload

* Update run_test.py

* Update run_test_all.py

* Update README.md

* Update run_test.py

* Delete official/projects/rngdet/only_eval_metric.py

* Update run_test_all.py

* Update README.md

* Update README.md

* Add files via upload

* Update rngdet_input.py

* Update run_test_all.py

* Update do_train.sh

* Update run_test_all.py

* Clean for PR

* Update rngdet.py

* clean up for PR

* clean up for PR

* Update rngdet.py

* Update README.md

* Update README.md

* Update README.md

* Update rngdet_test.py

* Update rngdet_test.py

* Delete official/projects/rngdet/tasks/__pycache__ directory

* Delete official/projects/rngdet/configs/__pycache__ directory

* Delete official/projects/rngdet/dataloaders/__pycache__ directory

* Delete official/projects/rngdet/eval/__pycache__ directory

* Delete official/projects/rngdet/modeling/__pycache__ directory

* Delete official/projects/rngdet/metric directory

* Update run_test_all.py

* Create requirements.txt

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Co-authored-by: Gunho Park <gunho1123@postech.ac.kr>