PropertyGrid新增文件选择类型

[benyuz]

Feature request type

sample request

Is your feature request related to a problem? Please describe

请求给PropertyGrid控件新增文件选择类型，具体表现类似: 有个文本框和选择按钮，点击后弹出文件/文件夹选择框，选择后文件路径显示在文本框里。

Describe the solution you'd like

看到官方文档有自定义方式，但是不会弄。如果做成标准就很好。https://handyorg.github.io/handycontrol/extend_controls/propertyGrid/

Describe alternatives you've considered

No response

Additional context

No response