added communication methods and structures for party modes

VocaluxeLib/Menu/CMenuParty.cs

@@ -25,11 +25,15 @@ namespace Vocaluxe.Menu
             return _PartyModeID;
         }
 
-        public void AssignPartyMode(IPartyMode PartyMode)
+        public void AssingPartyMode(IPartyMode PartyMode)
         {
             _PartyMode = PartyMode;
         }
 
+        public virtual void DataToScreen(Object Data)
+        {
+        }
+
         /*
         public sealed override void LoadTheme()
         {