Implemented the mount interface, Fixed some interface stuff, Some cosmetics, and Updated the outfits window

* Added new arrow buttons.
* Fixed the vertical separator.
* Added new game_playermount module to handle player mounting.
* Moved the battle icons to /images.
* Outfit window accommodates for mounts, loads addons more efficiently and keeps addons set on update, added new Outfit.randomize function that allows you to randomize your outfit colors, and set up a new layout.

modules/game_playermount/playermount.lua

@@ -0,0 +1,38 @@
+PlayerMount = {}
+
+-- private variables
+
+-- private functions
+
+-- public functions
+function PlayerMount.init()
+  g_ui.importStyle('playermount.otui')
+  
+  connect(g_game, { onDeath = PlayerMount.dismount,
+                    onGameEnd = PlayerMount.dismount })
+  
+  g_keyboard.bindKeyDown('Ctrl+R', PlayerMount.toggleMount, gameRootPanel)
+end
+
+function PlayerMount.terminate()
+  disconnect(g_game, { onDeath = PlayerMount.dismount,
+                       onGameEnd = PlayerMount.dismount })
+
+  g_keyboard.unbindKeyDown('Ctrl+R', PlayerMount.toggleMount, gameRootPanel)
+  PlayerMount.reset()
+  
+  PlayerMount = nil
+end
+
+-- hooked events
+function PlayerMount.toggleMount()
+  if g_game.isMounted() then
+    g_game.mount(false)
+  else
+    g_game.mount(true)
+  end
+end
+
+function PlayerMount.dismount()
+  g_game.mount(false)
+end