Add an optional flag for disabling remote bases. While the `--no-remote-bases` is set to `false` by default, Flux users are encouraged to enable it on production system for security and performance reasons. Using Kustomize remote bases means that kustomize-controller must clone the remote repositories on every reconciliation instead of using the source-controller artifacts cache. Allowing remote bases on multi-tenant clusters, means platform admins have no control over which repositories make up the desired state.
Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>