Mock server is not aware of status subresource handling

[shawkins]

Create, replace, and edit/patch will modify the subresource status.

For example if you do something like:

client.customResources(MyResource.class).inNamespace(namespace).withName(name).patch(resource);

Where the resource status is null, the mock server will apply that change from the diff. A kubernetes server does not seem to do that and instead expects a patch to be issued specifically against the status subresourse.