kubebuilder resource creation fails when resource name is already its own plural

[perotinus]

When I try to create a resource with a name that's already it's own plural, the resource creation fails:

$ kubebuilder create resource --group foo --version v1alpha1 --kind Metadata
2018/05/14 14:22:16 Client code generation expects singular --kind.

It looks like the code here is triggering this. Perhaps it would be useful to add a flag to bypass this check?