This basically encompasses two logical changes:

1. More fully integrating neonvm into the rest of the repository; and
2. Using a consistent directory structure for all components

The new structure is:

- All components get their own top-level directory (e.g.
  autoscaler-agent, neonvm-controller, vm-builder)
- Inside the directory, there is:
  - cmd/ - directory containing main.go for the component
  - Dockerfile - for building the component
  - *.yaml - various YAML files for deploying, if applicable

Additionally, all code outside the cmd package are moved into the pkg/
subdirectory. In particular, there is now pkg/neonvm/.

Also of note: neonvm/hack/kernel has been relocated to the new top-level
directory neonvm-kernel/.

Under this structure, the user-visible changes are:

1. Introduction of new YAML: neonvm-controller.yaml
2. Introduction of new YAML: neonvm-vxlan-controller.yaml
3. neonvm.yaml now is *mostly* just the CRD.

The primary reasons for this change are:

1. Because it's been long enough since we moved the neonvm repository
   here that we might as well make it more well-integrated.
2. Because as we look to potentially add components in other languages,
   we need a directory structure that supports it.