feat: add zindexOfColumn and cindexOfColumn to namespace

---
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---

Author: kgryte

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

@@ -54,6 +54,15 @@ setReadOnly( ns, 'cfill', require( '@stdlib/blas/ext/base/cfill' ) );
 */
 setReadOnly( ns, 'cindexOf', require( '@stdlib/blas/ext/base/cindex-of' ) );
 
+/**
+* @name cindexOfColumn
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/ext/base/cindex-of-column}
+*/
+setReadOnly( ns, 'cindexOfColumn', require( '@stdlib/blas/ext/base/cindex-of-column' ) );
+
 /**
 * @name cindexOfRow
 * @memberof ns
@@ -1755,6 +1764,15 @@ setReadOnly( ns, 'zfill', require( '@stdlib/blas/ext/base/zfill' ) );
 */
 setReadOnly( ns, 'zindexOf', require( '@stdlib/blas/ext/base/zindex-of' ) );
 
+/**
+* @name zindexOfColumn
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/ext/base/zindex-of-column}
+*/
+setReadOnly( ns, 'zindexOfColumn', require( '@stdlib/blas/ext/base/zindex-of-column' ) );
+
 /**
 * @name zindexOfRow
 * @memberof ns