Automatically extract packages. Fix ra.

mods/ra/chrome/mainmenu.yaml

@@ -1,49 +1,3 @@
-Background@MAINMENU_INIT:
-	Id:MAINMENU_INIT
-	X:(WINDOW_RIGHT - WIDTH)/2
-	Y:(WINDOW_BOTTOM - HEIGHT)/2
-	Width:250
-	Height:330
-	Visible:true
-	Delegate:GameInitDelegate
-	Children:
-		GameInitInfo:
-			Id:INFO
-			TestFile: fakefile.mix
-			GameTitle: Red Alert
-		Label@MAINMENU_LABEL_TITLE:
-			Id:MAINMENU_LABEL_TITLE
-			X:0
-			Y:20
-			Width:250
-			Height:25
-			Text:Install Game Content
-			Align:Center
-			Bold:True
-		Button@INIT_DOWNLOAD:
-			Id:INIT_DOWNLOAD
-			X:45
-			Y:70
-			Width:160
-			Height:25
-			Text:Download
-			Bold:True
-		Button@INIT_FROMCD:
-			Id:INIT_FROMCD
-			X:45
-			Y:110
-			Width:160
-			Height:25
-			Text:From CD
-			Bold:True
-		Button@INIT_QUIT:
-			Id:INIT_QUIT
-			X:45
-			Y:150
-			Width:160
-			Height:25
-			Text:Quit
-			Bold:True
 Background@MAINMENU_BG:
 	Id:MAINMENU_BG
 	X:(WINDOW_RIGHT - WIDTH)/2

mods/ra/mod.yaml

@@ -51,6 +51,7 @@ Assemblies:
 	mods/ra/OpenRA.Mods.RA.dll
 
 ChromeLayout:
+	mods/ra/chrome/gameinit.yaml
 	mods/ra/chrome/ingame.yaml
 	mods/ra/chrome/mainmenu.yaml
 	mods/ra/chrome/videoplayer.yaml