avoltz: test/e2e/network: add traffic_policy test for ITP / ETP interoperability

JobBuild
8e37927e
01-12 14:19		 112985
01-12 13:26		 23ce4da8
01-12 13:25
pull-kubernetes-conformance-kind-ga-only-parallel 1613541142668775424 1613527501294800896
pull-kubernetes-conformance-kind-ipv6-parallel 1613541142224179200 1613527500896342016
pull-kubernetes-dependencies 1613541142295482368 1613527500959256576
pull-kubernetes-e2e-gce 1613541142366785536 1613527501026365440
pull-kubernetes-e2e-gce-100-performance 1613541144723984384 1613527503421313024
pull-kubernetes-e2e-gci-gce-ingress 1613541142828158976 1613527501424824320
pull-kubernetes-e2e-gci-gce-ipvs 1613541143046262784 1613527501731008512
pull-kubernetes-e2e-kind 1613541142513586176 1613527501173166080
pull-kubernetes-e2e-kind-ipv6 1613541142593277952 1613527501231886336
pull-kubernetes-e2e-kind-multizone 1613575187544936448
pull-kubernetes-e2e-ubuntu-gce-network-policies 1613541142891073536 1613527501504516096
pull-kubernetes-integration 1613541142450671616 1613527501097668608
pull-kubernetes-node-e2e-containerd 1613541143864152064 1613527502565675008
pull-kubernetes-typecheck 1613541145550262272 1613527504243396608
pull-kubernetes-unit 1613541142744272896 1613527501349326848
pull-kubernetes-verify 1613541147227983872 1613527505929506816
pull-kubernetes-verify-govet-levee 1613541146393317376 1613527505082257408