[Feature] 拖拽列支持设置可拖拽的范围

[xiaoosnggao]

What problem does this feature solve?

目前看如果有锁定的列，可拖拽的列可以拖拽到锁定列的前面，导致表格异常 https://github.com/VisActor/VTable/assets/16183057/0b5d528b-fcb3-412f-bfdd-82f2ce14ba94

What does the proposed API look like?

dragRange?: { start?: number; end?: number; }