feat: add acartesianSquare to namespace

Author: kgryte

lib/node_modules/@stdlib/array/lib/index.js

@@ -67,6 +67,15 @@ setReadOnly( ns, 'ArrayBuffer', require( '@stdlib/array/buffer' ) );
 */
 setReadOnly( ns, 'acartesianProduct', require( '@stdlib/array/cartesian-product' ) );
 
+/**
+* @name acartesianSquare
+* @memberof ns
+* @readonly
+* @constructor
+* @see {@link module:@stdlib/array/cartesian-square}
+*/
+setReadOnly( ns, 'acartesianSquare', require( '@stdlib/array/cartesian-square' ) );
+
 /**
 * @name Complex64Array
 * @memberof ns