Added Alternate Tank, go back to using glScalef for scaling models until shader based rendering is implemented, improved Map handling of scaling.

assets/base/power_plant/manifest.yaml

@@ -2,3 +2,10 @@ name: "power_plant"
 model: "power_plant.obj"
 collision: "mesh"
 collision_mesh: null # Use model mesh for collision detection
+uses:
+  -
+    package: "base"
+    model: "purchase_terminal"
+  -
+    package: "base"
+    model: "information_panel"