chore: remove kube-rbac-proxy and use ginkgo tests

[shreddedbacon]

Removes kube-rbac-proxy from aergia and replaces it with WithAuthenticationAndAuthorization.

Removes legacy controller-test.sh and replaces it with ginkgo based tests, updates to the Makefile for local development tooling support.

[shreddedbacon]

@CGoodwin90 can you see if you're able to run the test suite for this locally using make kind/test-e2e

[CGoodwin90]

@CGoodwin90 can you see if you're able to run the test suite for this locally using make kind/test-e2e

Yep, that ran and passed.

[shreddedbacon]

Thanks!

Edit: I've asked for a review, but its mostly just shuffling code around to suit the project patterns for kubebuilder, and the replacement of the test-suite into ginkgo. Have a look, if you've got questions just ask.