UpdateValueAndValidity emits event when adding validator directive

[Mooeeezzzz]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report  
[ ] Performance issue
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

formGroup.valueChanges emit value when setting a validator directive like required because the library call updateValueAndValidity inside setValidators Fn.

Expected behavior

formGroup.valueChanges should not emit when adding a directive like the default angular form behaviour we can add the possibility to pass global options for updateValueAndValidity to avoid breaking changes and for easier adoption for big project.

Minimal reproduction of the problem with instructions

https://stackblitz.com/edit/angular-ivy-kzr2zk

What is the motivation / use case for changing the behavior?

migrating big entreprise project to use ngneat/reactive-forms with minimal breaking changes .

Environment

Angular version: 11


Browser:
- [x] Chrome (desktop) version XX
- [x] Chrome (Android) version XX
- [x] Chrome (iOS) version XX
- [x] Firefox version XX
- [x] Safari (desktop) version XX
- [x] Safari (iOS) version XX
- [x] IE version XX
- [x] Edge version XX
 
For Tooling issues:
- Node version: XX  
- Platform:  

Others: