Connecter is a type of resource that connects a request
coming from the client to an internal request within the cluster.
It will be used for exposing a pod's proxy, exec, and portforward
endpoints.
Allows REST consumers to build paths like:
/api/v1beta3/namespaces/foo/webhookresource/<name>/<encodedsecretinurl>
Also fixes parameter exposure for subresources (was only fixed for
v1beta3).
In addition to Getter interface, API Installer now supports a
GetterWithOptions interface that takes an additional options object when
getting a resource. A flag is now returned from rest.ResourceStreamer
that indicates whether the streamed response should be
flushed when written back to the client. This is to support log
streaming.
Dependency chain is now api -> api/rest -> apiserver. Makes the
interfaces much cleaner to read, and cleans up some inconsistenties
that crept in along the way.
