PySoy: Update Blocks Examples
completed by: Darrel
mentors: Amaury Medeiros, Arc Riley, Tony Young, David Czech, Mayank Singh
examples/blocks.py to use the modern API for generating
the respective blocks with a checkered cubemap material and rounded edges.
examples/CollideBlocks.py to a modern API as well,
along with other examples which use
blocks.py (some should just
be deleted instead due to being redundant or obsolete).
These examples should use a white background for cleaner screenshots.
When you've done, commit your work and post the resulting changeset url to this task.