feat: add ndarray2localeString to namespace

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---

Author: kgryte

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

@@ -882,6 +882,15 @@ setReadOnly( ns, 'toFlippedud', require( '@stdlib/ndarray/to-flippedud' ) );
 */
 setReadOnly( ns, 'ndarray2json', require( '@stdlib/ndarray/to-json' ) );
 
+/**
+* @name ndarray2localeString
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/ndarray/to-locale-string}
+*/
+setReadOnly( ns, 'ndarray2localeString', require( '@stdlib/ndarray/to-locale-string' ) );
+
 /**
 * @name toReversed
 * @memberof ns