Comma separated value support for settings arrays / enumerables

[sandreas]

Is your feature request related to a problem? Please describe.
Let's say you can define multiple colors for an enum array:

myapp --color="red" --color="green" --color="blue" --color="yellow"

I'm a bit frustrated, that I have to provide the option parameter 4 times, because it could be much shorter just providing the options with a separator.

Describe the solution you'd like

[CommandOption("--color", Separator = ",")]
public MyColor[] RemoveAdditionalFields { get; init; } = Array.Empty<MyColor>();

myapp --color="red,green,blue,yellow"

Describe alternatives you've considered

myapp --color "red" "green" "blue" "yellow"

What do you think?