🥰 [FEATURE]能否添加一个多边形挖洞的功能

### 💻 Features description [Please make everyone to understand it]
可将已经绘制的多边形进行挖洞
### 🏞 What problem does this feature solve

### 🧐 What does the proposed API look like

### 🚑 Any additional [like screenshots]
it looks like this : https://viglino.github.io/ol-ext/examples/interaction/map.interaction.drawhole.html

Start by reviewing the existing polygon-drawing interactions in the L7Draw repository and compare their behavior with the linked draw-hole example. Determine the API and interaction needed to cut holes in already drawn polygons; done should be demonstrated by a usable hole-drawing workflow, though the issue does not name files or tests.

Written by the indexing model from the issue text.