add Makefile, downstream build script, enable CI for downstream

Signed-off-by: Adam Miller <admiller@redhat.com>

Makefile

@@ -0,0 +1,39 @@
+# Also needs to be updated in galaxy.yml
+VERSION = 1.0.0
+
+clean:
+	rm -f community-kubernetes-${VERSION}.tar.gz
+	rm -rf ansible_collections
+
+build: clean
+	ansible-galaxy collection build
+
+release: build
+	ansible-galaxy collection publish community-kubernetes-${VERSION}.tar.gz
+
+install: build
+	ansible-galaxy collection install -p ansible_collections community-kubernetes-${VERSION}.tar.gz
+
+test-sanity:
+	ansible-test sanity -v --docker --color $(TEST_ARGS)
+
+test-integration:
+	ansible-test integration --docker -v --color $(TEST_ARGS)
+
+test-molecule:
+	ansible-test integration --docker -v --color $(TEST_ARGS)
+
+downstream-test-sanity: 
+	./utils/downstream.sh -s
+
+downstream-test-integration: 
+	./utils/downstream.sh -i
+
+downstream-test-molecule: 
+	./utils/downstream.sh -m
+
+downstream-build: 
+	./utils/downstream.sh -b
+
+downstream-release:
+	./utils/downstream.sh -r