feat(rc5): update to angular rc.5

- NgaModule - module wrapper for all ng2-admin custom features
- Ng Module per page
- async components load
- menu moved (again) to a separate file (as now each module has its own route file)
- no need to import Ba* directives into the pages which have NgaModule in the import statement

src/app/pages/forms/forms.module.ts

@@ -0,0 +1,25 @@
+import { NgModule }      from '@angular/core';
+import { CommonModule }  from '@angular/common';
+import { FormsModule as AngularFormsModule } from '@angular/forms';
+import { NgaModule } from '../../theme/nga.module';
+
+import { routing }       from './forms.routing';
+import { Forms } from './forms.component';
+import { Inputs } from './components/inputs';
+import { Layouts } from './components/layouts';
+
+
+@NgModule({
+  imports: [
+    CommonModule,
+    AngularFormsModule,
+    NgaModule,
+    routing
+  ],
+  declarations: [
+    Layouts,
+    Inputs,
+    Forms
+  ]
+})
+export default class FormsModule {}