Provide a version of our CRDs without bundling in Flux CRDs

[chrisseto]

We currently maintain a collection of CRD patches for both our CRDs and Flux CRDs. While there is a flag to disable the bundled flux controllers, there is no way to install just the RedPanda CRDs. Users of the aforementioned flag will likely be very surprised to find that they may have overridden flux's CRDs with our patched versions.

Some of these CRDs worked around backwards compatibility issues. Therefore it's a bit scary to blindly remove them without a better understanding of the existing version matrices.

To work around this we have a couple options:

1. Provide a version of our CRDs that exclude Flux's CRDs
2. Provide a version of our CRDs that move flux into the redpanda group version
3. Remove all flux patches and ensure compatibility between the operator and a window of versions of flux.

JIRA Link: K8S-203