Open Forge 2.0 - Single walls

I could not find the separate walls set, so I made my own.

For now, I have only made four types of separate walls for 1x up to 4x:

- Plain: These would correspond with the original separate walls set. They have round holes. These are Magnetic + OpenLock.
- Plain thick: These are like the plain set, but thicker, to cover the wall's thickness. Only Magnetic.
- Square thick: Thick separate walls, but their holes are squared. Only Magnetic.
- Extended thick: Thick separate walls, but their holes are squared and rectangular in the edges. The v2 of 3x and 4x feature extended rectangular holes in the middle ones as well. Only Magnetic.

I plan to make diagonal, curved and curved concave versions as well, and maybe tackle other combinations of locks in the future.

Let me know what you think!