Group Ordering

I have a mix of k8s ingress defined apps and CRD defined apps and group ordering seems to be random-ish. It appears that the ingress defined apps are first, in semi-alphabetical order, then the CRD apps groups appear next and they seem to be alphabetical.

@mleklund so, any suggestions on ordering should be?

PR is more than welcome

IMO: generally alphanumerical, case-insensitive (collation not required or system locale), maybe primary sorted by an "order" annotation, secondary by group name.

I think there should be a way to manually specify the groups ordering via config.

Alphabetically by group name makes most sense. An additional priority / sort setting would be great to keep say "cluster applications" on top, while workload fills out below.