@ngrx/component add schematics

[BioPhoton]

ngrx/components schematics

Implement schematics and migration scripts for the new features of ngrx/component.

Related: #2441

Todos

• Implement schematics
  • ng add @ngrx/components
• Implement migration scripts
  • factor-rule to replace async with ngrxPush see angular/material example
  • factor-rule to replace *ngIf="value$ | async as value" with *ngrxLet="value$; let value" (TO EVALUATE)
• Implement tests
  • TODO checkout how current tests are done
• Docs
  • Update dependencies
  • Update migration

If accepted, I would be willing to submit a PR for this feature

[X] Yes (Assistance is provided if you need help submitting a pull request)
[ ] No

[brandonroberts]

Fixed via #2611