Remove all files that have been separated into a new library 'objectlib'
New 'tutorial' activity.
Convert the PostRender to a PreRender, called before we render.This makes more sense as this way things are prepared for the very first render.
More progreess porting RubikCube.
More support for the 3x3x3 Solver: more of the actual 3x3x3 solver mechanism.