Adds group configuration

source/Utilities/ArrayUtils.ts

@@ -3,4 +3,15 @@ export class ArrayUtils {
         const index = Math.floor(Math.random() * array.length);
         return array[index];
     }
+
+    public static arraysEqual<T>(a: Array<T>, b: Array<T>): boolean {
+        if (a === b) return true;
+        if (a == null || b == null) return false;
+        if (a.length !== b.length) return false;
+
+        for (var i = 0; i < a.length; ++i) {
+            if (a[i] !== b[i]) return false;
+        }
+        return true;
+    }
 }