[ADF-3274] people widget instead of the people list (#3582)

* people list added

* tests added

* style fix

* Update start-task.component.ts

Use correct import

* Update people.widget.spec.ts

add the async

* peopleSelected test fixed

lib/process-services/task-list/components/start-task.component.ts

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { LogService, UserPreferencesService, UserProcessModel } from '@alfresco/adf-core';
+import { LogService, UserPreferencesService, UserProcessModel, FormFieldModel, FormModel } from '@alfresco/adf-core';
 import { Component, EventEmitter, Input, OnInit, Output, ViewEncapsulation } from '@angular/core';
 import { DateAdapter, MAT_DATE_FORMATS } from '@angular/material/core';
 import { MOMENT_DATE_FORMATS, MomentDateAdapter } from '@alfresco/adf-core';
@@ -68,6 +68,8 @@ export class StartTaskComponent implements OnInit {
 
     dateError: boolean;
 
+    field: FormFieldModel;
+
     /**
      * Constructor
      * @param auth
@@ -81,6 +83,7 @@ export class StartTaskComponent implements OnInit {
     }
 
     ngOnInit() {
+        this.field = new FormFieldModel(new FormModel(), {id: this.assigneeId, value: this.assigneeId, placeholder: 'Assignee'});
         this.preferences.locale$.subscribe((locale) => {
             this.dateAdapter.setLocale(locale);
         });
@@ -110,6 +113,10 @@ export class StartTaskComponent implements OnInit {
         }
     }
 
+    getAssigneeId(userId) {
+        this.assigneeId = userId;
+    }
+
     private attachForm(taskId: string, formKey: number): Observable<any> {
         let response = Observable.of();
         if (taskId && formKey) {