Warning

This updates changes the way block are named removing the blocks that have changed names from your worlds!

Changes

• switched to a more consistant naming for both the properties and the blocks themselves:
  a block has the name of the shape and the name of the shape in plural form with the second shape being the final shape that it creates. For example Stairs Cube is a stair with a second theme forming a cube
• Improved caching to use less space and make sure it will not grow to much by using keys instead of blockstates.
• Added self culling: the interror of multiple themed frames will receive the same caching computations as two adjacent blocks.
  !Self culling example
  here on the left I use a "Slabs Cube Frame" which culls the center textures and the one with the adjacent block which make it look more like the glass connects to its neighbor compared to the right where it doesn not cull because the shapes don't match.
• Added new Shapes: Small Cube, Small Cubes Step, Half Stair, Half Stairs Slab, Half Stairs Stair and Layer
  !All the Shapes
• Made themes more coherent so that the orientation is less random (will be nice for blueprint use)
  !Theme Coherence
• finally added some tools in the code for faster addition of blocks.

Hope You enjoy the mod! Please report any issues/request on github.