Issue vmware#128: Adopt bundle format for the Operator

Support bundle format for NCP operator. Update bundle manifest files/
Dockerfile/Makefile for generating bundle image.
Current workflow is:
  1.Generate CSV files with tool faq.
  2.Build image contains CSV files.
  3.Index the image with version using tool opm.
After NCP operator finishes refactoring with new version of operator-sdk,
the workflow will be simplified to generating bundle image automatically
with operator-sdk.

Makefile

@@ -25,6 +25,12 @@ build:
 bin:
 	GOOS=linux $(GO) build -o $(BINDIR)/$(OPERATOR_NAME) $(GOFLAGS) -ldflags '$(LDFLAGS)' ./cmd/manager
 
+.PHONY: bundle
+bundle:
+	docker build -t $(BUNDLE_REPO)/$(BUNDLE_IMG_NAME):tmp -f build/Dockerfile .
+	docker push $(BUNDLE_REPO)/$(BUNDLE_IMG_NAME):tmp
+	opm index add --build-tool docker --bundles $(BUNDLE_REPO)/$(BUNDLE_IMG_NAME):tmp --tag $(BUNDLE_REPO)/$(BUNDLE_IMG_NAME):$(BUNDLE_VERSION)
+
 .PHONY: test-unit
 test-unit:
 	GOOS=linux $(GO) test -race -cover github.com/vmware/nsx-container-plugin-operator/pkg...

bundle.Dockerfile

@@ -0,0 +1,16 @@
+FROM scratch
+
+LABEL operators.operatorframework.io.bundle.mediatype.v1=registry+v1
+LABEL operators.operatorframework.io.bundle.manifests.v1=manifests/
+LABEL operators.operatorframework.io.bundle.metadata.v1=metadata/
+LABEL operators.operatorframework.io.bundle.package.v1=nsx-container-plugin-operator
+LABEL operators.operatorframework.io.bundle.channels.v1=alpha
+LABEL operators.operatorframework.io.bundle.channel.default.v1=alpha
+LABEL operators.operatorframework.io.test.config.v1=tests/scorecard/
+LABEL operators.operatorframework.io.test.mediatype.v1=scorecard+v1
+
+COPY bundle/manifests /manifests/
+COPY bundle/metadata /metadata/
+COPY bundle/tests/scorecard /tests/scorecard/
+LABEL com.redhat.openshift.versions=v4.6,v4.7
+LABEL com.redhat.delivery.operator.bundle=true