Updated hitbox for false wall so it's findable again in Planets!

Balanced destruction & integrity for false wall.

Added false stone wall along with regular stone walls that don't generate pillars automatically (the pillars would be an obvious give-away of the false wall).

Added 3 new varieties, so now all four floor directions are represented. No matter how your wooden floor is laid out, there's a trap-door floor block that will make a nice seamless fit.

Updated switch lever. Has made BIG improvement in hitbox. Not perfect, but it's now possible to practice a bit and learn how to run past the switch and activate it without stopping. If you've got an enemy right behind you, it's now legitimately possible to have him drop into a trap without ever knowing it was coming.