feat: add toFlippedlr to namespace

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---

Author: kgryte

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

@@ -1210,6 +1210,15 @@ setReadOnly( ns, 'sub2ind', require( '@stdlib/ndarray/base/sub2ind' ) );
 */
 setReadOnly( ns, 'ndarray2array', require( '@stdlib/ndarray/base/to-array' ) );
 
+/**
+* @name toFlippedlr
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/ndarray/base/to-flippedlr}
+*/
+setReadOnly( ns, 'toFlippedlr', require( '@stdlib/ndarray/base/to-flippedlr' ) );
+
 /**
 * @name toNormalizedIndices
 * @memberof ns