Fix T49008: Blender-ID add-on for inclusion as OFFICIAL

Added Blender-ID add-on version 1.2.0.

For more info, see the repository at
https://developer.blender.org/diffusion/BIA/

To bundle a new version, run this from the Blender-ID add-on source:

python3 setup.py bdist bundle --path /path/to/blender/release/scripts/addons