[ADF-584] [ADF-3561] Validation error summary for error component (#3795)

* emit Forms error

* add demo

* add documentation
remove old form tag deprecated in 1.x
fix translation outcome

* remove prevent default validation

* fix lint

lib/core/form/events/validate-form.event.ts

@@ -17,10 +17,12 @@
 
 import { FormModel } from './../components/widgets/core/index';
 import { FormEvent } from './form.event';
+import { FormFieldModel } from '../components/widgets/core/form-field.model';
 
 export class ValidateFormEvent extends FormEvent {
 
     isValid = true;
+    errorsField: FormFieldModel[] = [];
 
     constructor(form: FormModel) {
         super(form);