Add IsObjectTank method with error handling to CykUtil

Projects/TerraTech/TerraTech/CykUtil.cs

@@ -1,3 +1,5 @@
+using System;
+
 namespace TerraTech {
     public class CykUtil {
         public static bool IsPlayerTank(Module module) {
@@ -11,5 +13,18 @@ namespace TerraTech {
                 return false;
             return tank.ControllableByLocalPlayer;
         }
+
+        public static bool IsObjectTank(object obj) {
+            if (obj == null)
+                return false;
+            try {
+                return IsPlayerTank(obj as Module);
+            } catch (Exception e) {
+                Console.WriteLine("Failed to check if object is a player tank: " + e.Message);
+                return false;
+            }
+
+            return false;
+        }
     }
 }