feat: add poisson to namespace

Author: kgryte

lib/node_modules/@stdlib/random/strided/lib/index.js

@@ -189,6 +189,15 @@ setReadOnly( ns, 'mt19937', require( '@stdlib/random/strided/mt19937' ) );
 */
 setReadOnly( ns, 'normal', require( '@stdlib/random/strided/normal' ) );
 
+/**
+* @name poisson
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/random/strided/poisson}
+*/
+setReadOnly( ns, 'poisson', require( '@stdlib/random/strided/poisson' ) );
+
 /**
 * @name randu
 * @memberof ns