trying to fix an error associated with error.mdl just being there.

- Added medical cabinet tester.
- Added Ammo pile to model loader
- Redesigned "bullet spread tester"
- L4D1 version uses coffee can ammo pile on the "range"

Added back the wall of weapons with skins.
Added Footlocker as seen in "The Passing".

added a l4d1 variant.
made the "range" part accessible.
removed the wall of weapon with their skins. unless i did that in a previous update, i forgor.

New design
Better weapon spawner
Full control over turntable

added gatling and browning.
used less expensive fon on item spawner, to prevent some crashes.

Added CI spawner and place to test weapon penetration and spread

Added Skin buttons

Added Pitchfork, Shovel and new Gascans.
One diesel can is the weapon, the other is teh model attached to the players back.