added: enemy target acquisition, better pathfinding, moved combat reference to unit

Assets/Scripts/Units/Unit.cs

@@ -24,6 +24,14 @@ namespace Reset.Units{
             get{ if (!_graph) { _graph = GetComponent<GraphOwner>(); } return _graph; }
         }
         
+        private UnitCombat _combat;
+        internal UnitCombat Combat{
+            get {
+                if (_combat == null) { _combat = GetComponent<UnitCombat>(); }
+                return _combat;
+            }
+        }
+        
         // Debug and Gizmos
         public NetworkVariable<FixedString64Bytes> graphStateAsString;