feat: add slice to namespace

Author: kgryte

lib/main.js

@@ -315,6 +315,15 @@ setReadOnly( stdlib, 'repl', require( '@stdlib/repl' ) );
 */
 setReadOnly( stdlib, 'simulate', require( '@stdlib/simulate' ) );
 
+/**
+* @name slice
+* @memberof stdlib
+* @readonly
+* @type {Namespace}
+* @see {@link module:@stdlib/slice}
+*/
+setReadOnly( stdlib, 'slice', require( '@stdlib/slice' ) );
+
 /**
 * @name stats
 * @memberof stdlib