Test distributions for compliant Configuration support

[negz]

Description of your changes

This PR ensures that a Configuration and its dependencies can be successfully installed. It also adds a small test to ensure all core Crossplane types are defined as expected.

I have:

• [x] Read and followed conformance's contribution process.
• [x] Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

I've run it against crossplane/crossplane installed on a kind cluster.