Handle istio gateways and virtual services in live cluster #2586

Job	Run time
build_package	30s
calico-tests-orig-vs-opt-comparison	46s
calico-tests	1m 50s
fw-rules-assertion-tests	45s
istio-tests	1m 0s
istio-tests-orig-vs-opt-comparison	1m 6s
k8s-tests	1m 30s
k8s-tests-orig-vs-opt-comparison	2m 2s
lint	10s
test-docker	31s
test-docker-ubi	56s
unit-tests	19s
test_package	19s
	11m 44s

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