I did stuff to the things
Added new customs to handle several collision variables and connected
those that matched existing blender conventions to those value items.
added max linear and angular velocity custom values to the ui
corrected property for max velocity customs
Merge pull request #154 from Ghostwalker71/feature/collision

Feature/collision
Merge branch 'develop' of git@github.com:Ghostwalker71/blender_nif_plugin.git into feature/shader_texture