Moved experimental features to a backend variable

gensettings.py

@@ -552,6 +552,22 @@ gensettingstf = [
     "classname": "system",
     "name": "keep_img_gen_in_memory"
  	},
+    {
+    "UI_V2_Only": True,
+ 	"uitype": "toggle",
+ 	"unit": "bool",
+ 	"label": "Experimental Items",
+ 	"id": "experimental_features",
+ 	"min": 0,
+ 	"max": 1,
+ 	"step": 1,
+ 	"default": 0,
+	"tooltip": "When enabled experemental features will be shown in the UI.",
+    "menu_path": "Interface",
+    "sub_path": "UI",
+    "classname": "system",
+    "name": "experimental_features"
+ 	},
 ]
 
 gensettingsik =[{