Update citation formatting in README.md

Update README with new sections and citations

added environment layout images

edit object_random_generation.py fix default value

add random object generation example

new reinforcement learning examples, added delay in client API, minor bug fixed

Add a python example for data collecting

Add new python API for vivid v5.2

Add test folder

Merge branch 'master' of https://github.com/kuanting/vivid

Update image

reduce sleep time add living room obj map

Update README.md

Update and rename generate_object_map.py to generate_with_object_map.py

fix path problem