Mayan OpenLOCK IC-low-wall

OpenLOCK IC-secondary-wall-low piece. I couldn't find any examples of the IC tile, so I made my own.

I wanted a Mayan style with squarish blocks, and wanted to be able to quickly make any of the tile shapes, so the bricks are created by a Python script running in Blender. The blocks are placed in a method inspired by "Wang tiles". Voronoi and Musgrave noise is applied to each brick for an interesting texture.

Future work: vary noise parameters per-brick; vary brick depth; vary brick corner roundness; automatically add cracks.