Need detailed description for new_features branch

[v-wewei]

Dear, author:
Would you mind to give a detailed introduction or readme for the new_feature branch ?
Seems this branch share a more advanced funcition like 6D pose and so on .
And, could you pls specify the version for blender ? Seems blender 2.8 had remove some of attribute in some class.
Really a good codebase for synthesis dataset ! Good job !
looking forwards your reply !
Thanks, very much.