Rearranged some script files

Data/Scripts/012_Battle/003_PBBattleTerrains.rb

@@ -0,0 +1,25 @@
+# These are in-battle terrain effects caused by moves like Electric Terrain.
+begin
+  module PBBattleTerrains
+    None     = 0
+    Electric = 1
+    Grassy   = 2
+    Misty    = 3
+    Psychic  = 4
+
+    def self.animationName(terrain)
+      case terrain
+      when Electric; return "ElectricTerrain"
+      when Grassy;   return "GrassyTerrain"
+      when Misty;    return "MistyTerrain"
+      when Psychic;  return "PsychicTerrain"
+      end
+      return nil
+    end
+  end
+
+rescue Exception
+  if $!.is_a?(SystemExit) || "#{$!.class}"=="Reset"
+    raise $!
+  end
+end