Auto created port for user

[chendelin1982]

What type of your feature request?

1. Auto created port for user if user click here, port range 9001-9999
2. This port as available as possible
3. 默认值自动生产尤佳

即：自动生成可用 | 点击生成可用 | 自行填写，努力帮助客户简化安装时的困扰

[zhaojing1987]

How to handle multi port applications？ @chendelin1982