Support for use as ConfigurationProvider

[stevefan1999-personal]

Is your feature request related to a problem? Please describe. I use .NET Generic Host for my CLI application but I have multiple layers of configuration. More specifically, I want to integrate CommandLineUtils as one of the ConfigurationProvider layers.

Describe the solution you'd like Add a way or best practice towards the use of Custom ConfigurationProvider

Describe alternatives you've considered Having two sets of options class and copy the CLI options into Host options.

Additional context Add any other context or screenshots about the feature request here.