Update the HelpProvider to display multiple long command options

[dsparkplug]

Is your feature request related to a problem? Please describe.
Something it's necessary to have more than one long command option. For example, when there's no appropriate short option that's not already used. e.g.

[CommandOption("-v|--verbose")]
public bool Verbose { get; set; }

[CommandOption("--vf|--verify")]
public bool Verify { get; set; }

The problem is that only only the first option is displayed when showing the command help text:

OPTIONS:
                                              DEFAULT
    -h, --help                                              Prints help information
    -v, --verbose
         --vf

Describe the solution you'd like
I'd like all options to be displayed in the help text - possibly as a pipe delimited list?

Describe alternatives you've considered
An alternative would be to list the other options in the description - but this is not ideal

Additional context
The HelpOption would need to be changed to allow more than one long name source

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