verona 2 implemented with same functionality as verona 1

src/app/app.component.ts

src/app/test-controller/backend.service.ts

src/app/test-controller/test-controller.component.ts

src/app/test-controller/test-controller.interfaces.ts

src/app/test-controller/test-controller.service.ts

src/app/test-controller/unithost/unithost.component.css

src/app/test-controller/unithost/unithost.component.ts