refactor(cve): improve CVE test time by mocking trivy (#1184)

- refactor(cve): remove the global of type cveinfo.CveInfo from the extensions package
  Replace it with an attribute on controller level
- refactor(controller): extract initialization logic from controller.Run()
- test(cve): mock cve scanner in cli tests

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

pkg/compliance/v1_0_0/check_test.go

@@ -81,6 +81,10 @@ func startServer(t *testing.T) (*api.Controller, string) {
 	ctrl.Config.Storage.SubPaths = subPaths
 
 	go func() {
+		if err := ctrl.Init(context.Background()); err != nil {
+			return
+		}
+
 		// this blocks
 		if err := ctrl.Run(context.Background()); err != nil {
 			return