Add db_port field while creating database

Author: kirtangajjar

php/class-ee-db.php

@@ -47,6 +47,7 @@ public static function create() {
 						db_password VARCHAR,
 						db_root_password VARCHAR, 
 						db_host VARCHAR, 
+						db_port VARCHAR, 
 						wp_user VARCHAR, 
 						wp_pass VARCHAR, 
 						email VARCHAR,