Generate child igx-hierarchical-grids dynamically.

[MayaKirova]

Closes #12765

Additional information (check all that apply):

• Bug fix
• New functionality
• Documentation
• Demos
• CI/CD

Checklist:

• All relevant tags have been applied to this PR
• This PR includes unit tests covering all the new code (test guidelines)
• This PR includes API docs for newly added methods/properties (api docs guidelines)
• This PR includes feature/README.MD updates for the feature docs
• This PR includes general feature table updates in the root README.MD
• This PR includes CHANGELOG.MD updates for newly added functionality
• This PR contains breaking changes
• This PR includes ng update migrations for the breaking changes (migrations guidelines)
• This PR includes behavioral changes and the feature specification has been updated with them

[MayaKirova]

Note that in order to reproduce the issue you need to go to the branch from: #12699
Add IgxChildGridRowComponent to the IgxHierarchicalGridComponent imports:

@Component({
    changeDetection: ChangeDetectionStrategy.OnPush,
    selector: 'igx-hierarchical-grid',
    templateUrl: 'hierarchical-grid.component.html',
    providers: [
      ...
    ],
    standalone: true,
    imports: [
        ...,
        IgxChildGridRowComponent
    ],
    schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
export class IgxHierarchicalGridComponent ...

And then run the hierarchical grid tests.
All will fail due to import stack overflow:

When testing with changes from this branch and removing the IgxHierarchicalGridComponent import from the IgxChildGridRowComponent :

@Component({
    changeDetection: ChangeDetectionStrategy.OnPush,
    selector: 'igx-child-grid-row',
    templateUrl: './child-grid-row.component.html',
    standalone: true,
   imports: [NgClass, forwardRef(() => IgxHierarchicalGridComponent)]  //delete this
})
export class IgxChildGridRowComponent implements AfterViewInit, OnInit {

No such global error should occur.