Story: As an operator author I want to be able to leverage namespace manifests in my operator bundle to ensure that my operator is installed in a particular namespace with properties that I need to ensure, such as name or default node selectors when OLM applies the bundle.

Acceptance criteria:

• authors can include namespace manifests in the bundle
• the namespaces manifest are applied first before any other resource
• other manifests in the bundle can depend on the behavior above and reference the included namespace by name in other manifests

Open questions:

• what happens when no namespace manifest is included?
• how does this namespace relate to the namespace in which the bundle is applied?