Texture System and Point Fracture System

Features

• Texture System -> Fractured polygons can have textures now.
• Point Fracture -> Just use a single point and a randomized polygon for this new system.
• Scale System -> Scaled things can be cut/fractured now.
• Fracture Shard -> simple fake rigid body if you don't want to use the physics system. (like collisions)

Cleanup

• General Code Clean up.
• Polygon Lib uses only transforms now.
• Polygon Lib no longer rotates the source polygon but transforms the cut shape into the source's local space.
• License text added to all gd files.