Skupper cli flag handling for annotations

[c-kruse]

It can be necessary to use the --router-pod-annotations flags to add annotations for just the router pod that contain commas themselves.

For example if I wanted the annotation "foo=x,y,z" to be applied to my resources I would want skupper init to accept the --router-pod-annotations=foo=x,y,z flag. Due to the confusing combination of bash string handling, cli flag parsing in spf13/pflag and our implementation I have not sorted out how to get this to work.

EDIT: Weirdly enough, this works with the --annotations flag ?