add more things

[Kierancraft]

Add the singular portal guns for only orange and only blue portals, add the portal emitters (the things that make portals with power), add the portal gun stands for the single portal guns, add the cameras, and add the floor buttons

[Kierancraft]

also adding the wall and floor power would be cool

[Cart3r1234]

The mod is still a work in progress, so many things are missing or will be added in the future. Single-portal guns, floor buttons, and Autoportals have been added in dev versions.