Add native sidecar support #2799

Job	Run time
cleanup	3s
changed-viz	23s
changed-policy	23s
tag	5s
changed-multicluster	22s
build-ext (jaeger-webhook)	4m 11s
build-ext (metrics-api)	3m 36s
build-cli	4m 50s
build-ext (tap)	4m 1s
build-core (cni-plugin)	3m 51s
build-ext (web)	6m 28s
build-core (controller)	4m 24s
build-core (policy-controller)	13m 13s
build-core (proxy)	3m 42s
test-core (cni-calico-deep)	5m 42s
test-ext (cluster-domain)	6m 12s
test-core (deep)	5m 36s
test-viz	9m 46s
test-ext (default-policy-deny)	5m 17s
test-policy	0s
test-ext (external)	7m 23s
test-ext (rsa-ca)	3m 55s
test-ext (helm-upgrade)	6m 54s
test-multicluster	0s
test-ext (uninstall)	5m 35s
test-ext (upgrade-edge)	8m 39s
test-ext (upgrade-stable)	7m 13s
	2h 1m 44s

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