feat: add matrixOrientationEnum2Str to namespace

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---

Author: kgryte

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

@@ -477,6 +477,15 @@ setReadOnly( blas, 'layoutStr2Enum', require( '@stdlib/blas/base/layout-str2enum
 */
 setReadOnly( blas, 'layouts', require( '@stdlib/blas/base/layouts' ) );
 
+/**
+* @name matrixOrientationEnum2Str
+* @memberof blas
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/base/matrix-orientation-enum2str}
+*/
+setReadOnly( blas, 'matrixOrientationEnum2Str', require( '@stdlib/blas/base/matrix-orientation-enum2str' ) );
+
 /**
 * @name matrixOrientationStr2Enum
 * @memberof blas