add small patch to 'patches' tab (#118) [skip ci]

data/ui_scripts/patches/__init__.lua

@@ -4,6 +4,7 @@ end
 
 if (Engine.InFrontend()) then
 	require("shaderdialog")
+	require("gamemodes")
 end
 
 -- defined in mp_hud/hudutils.lua

data/ui_scripts/patches/gamemodes.lua

@@ -0,0 +1,11 @@
+Cac.GameModes.Data = {
+    Standard = {
+        Label = Engine.Localize("@MPUI_STANDARD_CAPS"),
+        Image = "h1_ui_icon_playlist_standard",
+        List = 
+        {
+            "dm", "war", "sd", "dom", "conf", "sab", "koth", "hp", "gun", 
+            "dd", "ctf" -- missing gamemodes from UI
+        }
+    }
+}