Allow users to combine constraints applied on same selectors

Users should be able to combine constraints applied on same selectors. The syntax could look like:

```
enf when a:
apply_constraints([b, c])
apply_other_contraints([d, e, f])
```

_Originally proposed by @bobbinth in https://github.com/0xPolygonMiden/air-script/issues/224#issuecomment-1475633688_