* Split RenderableSphere class into a local and an online sphere
* Make the video sphere derive from the regular sphere
* Make RenderableTimeVaryingSphere derive from RenderableSphere
* Some clean up
* Add general functions for renderable matrix calculations
* Make RenderableSphere and Plane use them
* Fix an issue with the RenderablePlane shader
* Make one function that returns all three types of render matrices
* Make more Renderables use the general matric calculation function
* Make more Renderable use the general matrix function
* Simplify alternative transforms for matrix calculations
* Small clean-up
* Update RenderableModel (again) to use new transform functions
* Make calc all matrix function to return tuple
* Update some more places
* Add actions for zodiac constellations + some improvements
* Add fade to actions
* Add fade scripts that is able to take regex identifiers and fade screen space renderables