Add native sidecar support #3008

Job	Run time
cleanup	4s
changed-policy	13s
tag	3s
changed-viz	11s
changed-multicluster	10s
build-cli	2m 25s
build-ext (jaeger-webhook)	2m 13s
build-ext (metrics-api)	2m 18s
build-core (controller)	2m 20s
build-ext (tap)	2m 23s
build-core (policy-controller)	5m 21s
build-ext (web)	4m 7s
build-core (proxy)	2m 29s
test-core (deep)	3m 51s
test-ext (cluster-domain)	4m 1s
test-ext (default-policy-deny)	3m 52s
test-viz	5m 18s
test-policy (v1.21)	6m 46s
test-ext (external)	6m 11s
test-policy (v1.28)	5m 21s
test-ext (rsa-ca)	2m 53s
test-ext (helm-upgrade)	5m 35s
test-multicluster	0s
test-ext (uninstall)	4m 7s
test-ext (upgrade-edge)	4m 59s
test-ext (upgrade-stable)	5m 49s
	1h 23m 0s

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