K3s upgrade via watch over file change of static file and manifest
and triggers helm-controller for change. It seems reasonable to
only allow upgrade traefik v1->v2 when there is no existing custom
traefik HelmChartConfig in the cluster to avoid any
incompatibility.

Here also separate the CRDs and put them into a different chart
to support CRD upgrade.
Signed-off-by: Chin-Ya Huang <chin-ya.huang@suse.com>