feat: add basic designate chart

[v1k0d3n]

Kubernetes Version (output of kubectl version): N/A

Helm Client and Tiller Versions (output of helm version): N/A

Development or Deployment Environment?: N/A

Release Tag or Master: N/A

Expected Behavior: N/A

What Actually Happened: N/A

How to Reproduce the Issue (as minimally as possible): N/A

Any Additional Comments:
another chart that we would like to deliver is a basic designate chart. the designate chart can start much like the other openstack-helm charts started, with a goal of improving them over time.

[v1k0d3n]

i'm picking this one up as part of 0.4.0.