chore: update to new Angular 8 API

Author: VladimirAmiorkov

Diff for: nativescript-angular/directives/templated-items-comp.ts

@@ -56,11 +56,11 @@ export abstract class TemplatedItemsComponent implements DoCheck, OnDestroy, Aft
     protected _differ: IterableDiffer<KeyedTemplate>;
     protected _templateMap: Map<string, KeyedTemplate>;
 
-    @ViewChild("loader", { read: ViewContainerRef }) loader: ViewContainerRef;
+    @ViewChild("loader", { read: ViewContainerRef, static: false }) loader: ViewContainerRef;
 
     @Output() public setupItemView = new EventEmitter<SetupItemViewArgs>();
 
-    @ContentChild(TemplateRef) itemTemplateQuery: TemplateRef<ItemContext>;
+    @ContentChild(TemplateRef, { read: TemplateRef, static: false }) itemTemplateQuery: TemplateRef<ItemContext>;
 
     itemTemplate: TemplateRef<ItemContext>;
 

Diff for: nativescript-angular/router/ns-empty-outlet.component.ts

@@ -7,7 +7,7 @@ import { PageRouterOutlet } from "./page-router-outlet";
     template: "<page-router-outlet isEmptyOutlet='true'></page-router-outlet>"
 })
 export class NSEmptyOutletComponent {
-    @ViewChild(PageRouterOutlet) pageRouterOutlet: PageRouterOutlet;
+    @ViewChild(PageRouterOutlet, { read: PageRouterOutlet, static: false }) pageRouterOutlet: PageRouterOutlet;
     constructor(private page: Page) {
         if (this.page) {
             this.page.actionBarHidden = true;