Change TaskGraphSystem ordering

Source/Engine/Threading/TaskGraph.cpp

@@ -9,7 +9,7 @@ namespace
 {
     bool SortTaskGraphSystem(TaskGraphSystem* const& a, TaskGraphSystem* const& b)
     {
-        return b->Order < a->Order;
+        return b->Order > a->Order;
     };
 }
 

Source/Engine/Threading/TaskGraph.h

@@ -19,7 +19,7 @@ private:
 
 public:
     /// <summary>
-    /// The execution order of the system (systems with higher order are executed earlier).
+    /// The execution order of the system (systems with higher order are executed later, lower first).
     /// </summary>
     API_FIELD() int32 Order = 0;