Token Review

[shawn-hurley]

Adding ability to us a middleware to validate the bearer token from the service catalog.

• uses https://github.com/shawn-hurley/osb-broker-k8s-lib
• brings in dependencies on client-go, apimachinery and their dependencies.

[shawn-hurley]

One of the issues that I had trouble solving was how to test the token review. I would like to use the client-go mock to check but don't know how to set it for the token review middleware. Any ideas?

[lilic]

@shawn-hurley In case you haven't seen it, there is also this project that does something similar https://github.com/brancz/kube-rbac-proxy

[shawn-hurley]

@pmorie I think this should be ready for another review

[pmorie]

LGTM - I'm going to try to this out locally before I merge.