feat: add nanmskmax, nanmskmin, and nanmskrange to namespace

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---

Author: kgryte

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

@@ -297,6 +297,33 @@ setReadOnly( ns, 'nanminBy', require( '@stdlib/stats/array/nanmin-by' ) );
 */
 setReadOnly( ns, 'nanminabs', require( '@stdlib/stats/array/nanminabs' ) );
 
+/**
+* @name nanmskmax
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/array/nanmskmax}
+*/
+setReadOnly( ns, 'nanmskmax', require( '@stdlib/stats/array/nanmskmax' ) );
+
+/**
+* @name nanmskmin
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/array/nanmskmin}
+*/
+setReadOnly( ns, 'nanmskmin', require( '@stdlib/stats/array/nanmskmin' ) );
+
+/**
+* @name nanmskrange
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/array/nanmskrange}
+*/
+setReadOnly( ns, 'nanmskrange', require( '@stdlib/stats/array/nanmskrange' ) );
+
 /**
 * @name nanrange
 * @memberof ns