Aot support?

[bertt]

Hi, I'm trying to use this library with AOT (PublishAot = true) in .NET 8, but got the following warnings on publish (CommandLineParser 2.9.1):

 Generating native code
CommandLine.dll : warning IL2104: Assembly 'CommandLine' produced trim warnings. For more
 information see https://aka.ms/dotnet-illink/libraries
CommandLine.dll : warning IL3053: Assembly 'CommandLine' produced AOT analysis warnings.

And when running I see:

Unhandled Exception: System.InvalidOperationException: Type Options appears to be immutable, but no constructor found to accept values.

Type options:

public class Options
{
    private readonly bool verbose;

    public Options(bool verbose)
    {
        this.verbose = verbose;
    }
    [Option]
    public bool Verbose { get { return verbose; } }
}

Question: Is publishing with AOT supported?

[bertt]

found a workaround adding

[DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(Options))]
static void Main(string[] args)

[kgamecarter]

#913
NativeAoT in This PR work fine.
And smaller exe size.