added some more signals for attack hit, enemy and player controllers turn done, commander enemy death, better enemy movement and turn changing, implemented an rng, added functions to grid and gridmarkers to allow for easier searching of markers, more logic for if a tower commander has actions

GridMarker.cs

@@ -5,4 +5,6 @@ public partial class GridMarker : Marker2D
 {
     public Vector2 _address;
     public Node _occupant;
+
+    // public GridMarker Get
 }