[ADF-3676] Task Header - Expose task properties out of the box (#3883)

* #3878 Add support for end date in TaskHeaderComponent

* add duration and parentTaskId

lib/process-services/task-list/models/task-details.model.ts

@@ -31,6 +31,7 @@ export class TaskDetailsModel implements TaskRepresentation {
     category: string;
     created: Date;
     description: string;
+    parentName: string;
     dueDate: Date;
     duration: number;
     endDate: Date;