add versioning support to the API

src-ui/src/app/interceptors/api-version.interceptor.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { ApiVersionInterceptor } from './api-version.interceptor';
+
+describe('ApiVersionInterceptor', () => {
+  beforeEach(() => TestBed.configureTestingModule({
+    providers: [
+      ApiVersionInterceptor
+      ]
+  }));
+
+  it('should be created', () => {
+    const interceptor: ApiVersionInterceptor = TestBed.inject(ApiVersionInterceptor);
+    expect(interceptor).toBeTruthy();
+  });
+});