rl dir clean

rl/README.md

rl/algorithm/models.py

rl/algorithm/ppo.py

rl/algorithm/sac.py

rl/config.py

rl/ppo_continuous.py

rl/ppo_test.py

rl/run_ppo_policy.py

rl/run_sac_policy.py

rl/test.py

rl/train.py

rl/train_lstm_ppo.yaml

rl/train_ppo.yaml

rl/train_ppo_new.yaml

rl/train_sac.yaml

rl/yaml_args.yaml