[Feature Request] Select component add minCollapseTagsNumber prop and more slot

### Existing Component
Yes

### Component Name
Select

### Description

```javascript
// add minCollapseTagsNumber prop and more slot:

prop: {
minCollapseTagsNumber: {
type: Number,
default: 1
}
}

// slot
replace
{{ selected.length - 1 }}
with
{{ selected.length - minCollapseTagsNumber }}

```