Blender 2.9 support

Hi, it seems blender 2.8 is not yet supported but it's close in [this PR](https://github.com/bcongdon/bpy_lambda/pull/13) as far as I understand. Wouldn't it be possible to try with blender 2.9 directly? 
I'm quite lost trying to get bpy built for blender 2.9 and working for python 3.8 or 3.7, do you have any clue?