Minikube-based development environment

Works in conjunction with https://github.com/ansible/awx-operator/pull/71

See docs/development/minikube.md

installer/roles/kubernetes/templates/supervisor.yml.j2

@@ -61,6 +61,7 @@ data:
     autostart = true
     autorestart = true
     stopwaitsecs = 5
+    startretries = 10
     stopsignal=TERM
     stopasgroup=true
     killasgroup=true