Renamed baselines folder to habitat_baselines (#79)

examples/example.py

habitat_baselines/README.md

habitat_baselines/__init__.py

habitat_baselines/agents/__init__.py

habitat_baselines/agents/ppo_agents.py

habitat_baselines/agents/simple_agents.py

habitat_baselines/agents/slam_agents.py

habitat_baselines/config/__init__.py

habitat_baselines/config/default.py

habitat_baselines/evaluate_ppo.py

habitat_baselines/rl/__init__.py

habitat_baselines/rl/ppo/__init__.py

habitat_baselines/rl/ppo/policy.py

habitat_baselines/rl/ppo/ppo.py

habitat_baselines/rl/ppo/utils.py

habitat_baselines/slambased/README.md

habitat_baselines/slambased/data/mp3d3_small1k.yaml

habitat_baselines/slambased/data/slam-based-agent.png

habitat_baselines/slambased/install_deps.sh

habitat_baselines/slambased/mappers.py