Idea: Self-documenting?

[benmccallum]

Would it be possible to (at app startup / schema generation), crawl the tree, figure out what validators would fire where, and add some kinda of documentation onto the input (at field level or otherwise).

Is there a FluentValidation built-in/community package that can generate docs like this? Could use that and then read from it.

[benmccallum]

Consolidating this issue and a few others under #39