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

Add initial UI design for self service user management.

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

@@ -0,0 +1,28 @@
+import { NgModule, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
+
+import { UserManagementComponent } from './user-management/user-management.component';
+import { SelfServiceRoutingModule } from './self-service-routing.module';
+import { CoreModule } from '@app/core';
+import { CreateUserComponent } from './create-user/create-user.component';
+import { ViewUserComponent } from './view-user/view-user.component';
+
+@NgModule({
+  imports: [
+    CommonModule,
+    CoreModule,
+    SelfServiceRoutingModule,
+    NgbModule
+  ],
+  declarations: [
+    UserManagementComponent,
+    CreateUserComponent,
+    ViewUserComponent
+  ],
+  schemas: [
+   CUSTOM_ELEMENTS_SCHEMA
+ ],
+})
+export class SelfServiceModule { }