Add an operator Helm chart

The submariner-operator Helm chart deploys Submariner using the
Submariner operator: it deploys the CRDs, roles, and SAs required to
run the operator and Submariner, then pushes a Submariner CR to
instruct the operator to deploy Submariner.

This patch also adds a Makefile to validate the deployments; run

	make deploy

to test the Helm charts (this will bring up two clusters, install the
broker on one of them and the operator on both, and end with a
connectivity test).

Fixes: #17
Signed-off-by: Stephen Kitt <skitt@redhat.com>

Makefile

@@ -0,0 +1,36 @@
+ifneq (,$(DAPPER_HOST_ARCH))
+
+# Running in Dapper
+
+include $(SHIPYARD_DIR)/Makefile.inc
+
+CLUSTER_SETTINGS_FLAG = --cluster_settings $(DAPPER_SOURCE)/cluster_settings
+override CLUSTERS_ARGS += $(CLUSTER_SETTINGS_FLAG)
+override DEPLOY_ARGS += $(CLUSTER_SETTINGS_FLAG) --deploytool helm
+export DEPLOY_ARGS
+
+# Targets to make
+
+deploy: clusters preload-images
+
+preload-images:
+	source $(SCRIPTS_DIR)/lib/debug_functions; \
+	source $(SCRIPTS_DIR)/lib/deploy_funcs; \
+	source $(SCRIPTS_DIR)/lib/version; \
+	set -e; \
+	for image in submariner submariner-route-agent submariner-operator lighthouse-agent submariner-globalnet lighthouse-coredns; do \
+		import_image quay.io/submariner/$${image}; \
+	done
+
+.PHONY: preload-images
+
+else
+
+# Not running in Dapper
+
+include Makefile.dapper
+
+endif
+
+# Disable rebuilding Makefile
+Makefile Makefile.dapper Makefile.inc: ;