Proposed governance and maintenance policy

Below are the proposed governance and maintenance policy for Chef. :)
Again with @jaymzh - depending on how many maintainers we get in the initial set, this could be a lot of work for one or two people. It'd also be good to clarify whether this means answering questions on the development of the feature in question specifically, or if this relates to *all* questions relating to that component, including more general "how do I do X" support.