feat: add countSameValueZero to namespace

Author: kgryte

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

@@ -441,6 +441,15 @@ setReadOnly( ns, 'countFalsy', require( '@stdlib/array/base/count-falsy' ) );
 */
 setReadOnly( ns, 'countSameValue', require( '@stdlib/array/base/count-same-value' ) );
 
+/**
+* @name countSameValueZero
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/array/base/count-same-value-zero}
+*/
+setReadOnly( ns, 'countSameValueZero', require( '@stdlib/array/base/count-same-value-zero' ) );
+
 /**
 * @name countTruthy
 * @memberof ns