add required instance objects to CollectionComponent to resolve build…

… errors

src/app/collection/collection.component.ts

@@ -1,12 +1,15 @@
 import {Component, OnInit} from '@angular/core';
 import {ActivatedRoute, Params, Router} from '@angular/router';
-import {Employee} from '../services/office/domain/employee.model';
+import {Employee, Center} from '../services/office/domain/employee.model';
 import {FetchRequest} from '../services/domain/paging/fetch-request.model';
 import {TableData} from '../common/data-table/data-table.component';
 import {Store} from '@ngrx/store';
 import * as fromRoot from '../store';
 import {Observable} from 'rxjs/Observable';
 import {SEARCH} from '../store/employee/employee.actions';
+import { Staff } from '../services/domain/center/staff';
+import { Office } from '../services/office/domain/office.model';
+import { Group } from '../services/domain/group/group';
 
 
 
@@ -21,6 +24,11 @@ export class CollectionComponent implements OnInit {
 
   loading$: Observable<boolean>;
 
+  staffs: Staff[] = [];
+  offices: Office[] = [];
+  centers: Center[] = [];
+  groups: Group[] = [];
+
   columns: any[] = [
     { name: 'name', label: 'Name' },
     { name: 'accountNumber', label: 'Account #' },

src/app/services/domain/group/group.ts

@@ -0,0 +1,3 @@
+export interface Group {
+
+}