UPDATED for 0.4

THIS IS THE LAST POLYGON UPDATE

NEW POLYGONS COMING SOON, NEW MODPACK FOR THAT

testing an update to fix all the issues ever in forever ever.
lemme know if anything breaks or gets stuck.

"fixed" half block collision
collision size is slightly smaller than the visual model, allowing them to close for an odd-width double door.

Polygons now don't get stuck on each other

Fixed Block Thruster's power levels

Adjusted Half Block collision

Adjusted collisions to be smaller (but hopefully not sticky)

- updated the 1x1x1 gas engine (fixed speed issue for low speeds)

Changes:
- Received the 1x1x1 block thruster from the Modpack

Additions:
- New polygonal pistons: Block, Pipe, and Mini Pipe versions
- New polygonal suspensions: Block, Pipe, and Mini Pipe versions
- New block switch, button, and SENSOR (more interactive polygons!)
- New HALF BLOCK!
- New Convex Curve inside corner (2 versions)
- New Concave curve inside corner (flush)
- New Surface Panel inside corners (2 versions)
- New wedge piece inside corner