Add support for Statefulset

[jmgilman]

Feature Description

Add support for tapping Statefulset objects.

Proposed Solution

Extend the search beyond just deployments to include Statefulsets.

Alternative Solutions

I'm not aware of a workaround to this issue.

Additional Context

It appears that this tool doesn't support Statefulset objects. When attempting to tap a service pointing at a statefulset, I get:

Error: error resolving Deployment from Service selectors: the Service selector did not match any Deployments

I'm interpreting the "Deployments" as being literal in the above error.