Support images and instances to exist in different GCP projects for node

e2e.
Add current user to docker group on instances for node e2e.

Signed-off-by: Vishnu kannan <vishnuk@google.com>

hack/verify-flags/exceptions.txt

@@ -69,6 +69,7 @@ docs/getting-started-guides/coreos/azure/lib/deployment_logic/kubernetes.js:var
 examples/cassandra/image/run.sh:	cluster_name \
 examples/cluster-dns/images/frontend/client.py:  service_address = socket.gethostbyname(hostname)
 examples/vitess/env.sh:    node_ip=$(get_node_ip)
+hack/jenkins/e2e-runner.sh:    local image_project="$1"
 hack/local-up-cluster.sh:      runtime_config="--runtime-config=${RUNTIME_CONFIG}"
 hack/local-up-cluster.sh:    runtime_config=""
 hack/test-update-storage-objects.sh:  local storage_media_type=${2:-""}

hack/verify-flags/known-flags.txt

@@ -193,6 +193,7 @@ ignore-daemonsets
 ignore-not-found
 image-gc-high-threshold
 image-gc-low-threshold
+image-project
 image-pull-policy
 include-extended-apis
 included-types-overrides
@@ -410,6 +411,7 @@ service-node-ports
 service-overrides
 service-sync-period
 session-affinity
+setup-node
 show-all
 show-events
 show-labels