feat: UI for self service user management (#49)

Add initial UI design for self service user management.

src/app/self-service/self-service-routing.module.ts

@@ -0,0 +1,22 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+import { Route, extract } from '@app/core';
+import { UserManagementComponent } from './user-management/user-management.component';
+import { CreateUserComponent } from './create-user/create-user.component';
+import { ViewUserComponent } from './view-user/view-user.component';
+
+const routes: Routes = [
+  Route.withShell([
+    { path: 'self-service/users', component: UserManagementComponent, data: { title: extract('Self Service') } },
+    { path: 'self-service/users/create', component: CreateUserComponent },
+    { path: 'self-service/users/view', component: ViewUserComponent }
+  ])
+];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule],
+  providers: []
+})
+export class SelfServiceRoutingModule { }