Adapt WTO to be suitable for installing in a free (not openshift-operator) namespace.

This requirement went from try to install WTO on DevSandbox where it's nice to give Operator owners give the power to maintain their operators, without being able to touch foreign ones.

The main difficulty here - let OpenShift Console know in which namespace WTO is installed, and here we may need all cluster scoped CRD, with one instance expected to be created, which would tell this info.