Improve test suite

[tamalsaha]

• LB type fails in AWS. Hitting CNAME does not connect the backend http server.
• Ingress validator
• Template renderer
• Test TLS cases : https://github.com/appscode/searchlight/blob/master/pkg/icinga/configurator.go#L172
• Test case: Run L7 ingress on non-standard ports
  • HTTP on ports other than 80 & 443.
  • 443: terminate SSL, 80: redirects to 443. (noSSL)
  • HTTP (noSSL on port 443), application itself terminates SSL.
• Revise TCP secret name
  • Test NoSSL to avoid TLS selectively.
  • Test with matching TLS from spec.TLS
  • Serve both HTTP and HTTPS under same host
• Test case: Allow users to specify NodePort for service ports in NodePort mode. (TCP and HTTP)
  • Initially set.
  • Initially not set, then set via update.