Support For Dynamic Options

**Issue by [issafram](https://github.com/issafram)**
_Wednesday Aug 28, 2013 at 14:46 GMT_
_Originally opened as https://github.com/gsscoder/commandline/issues/96_

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I have an application that will have 1 to many different arguments being passed in. The argument names will always be different depending on configuration (dynamic). So I will never know the name of the argument names as the designer of the application.

Does this library support something like that? It is great for parsing but it requires the options parameter to be defined. I have tried using an ExpandoObject but I don't think it works properly because attributes are required on the properties.