Split jslib into multiple modules (#363)

* Split jslib into multiple modules

angular/src/directives/stop-click.directive.ts

@@ -0,0 +1,13 @@
+import {
+    Directive,
+    HostListener,
+} from '@angular/core';
+
+@Directive({
+    selector: '[appStopClick]',
+})
+export class StopClickDirective {
+    @HostListener('click', ['$event']) onClick($event: MouseEvent) {
+        $event.preventDefault();
+    }
+}