Add initial resources.md for discussion

The first draft of a Kubernetes resource model.
I am "on call" today, so I will merge momentarily.

On Mon, Sep 1, 2014 at 10:20 PM, john wilkes <johnwilkes@google.com> wrote:
> Thanks, Tim.
>
> Changes made, and new version pushed to my repository.
> Daniel: please can you do the merge?  I got a verbal LGTM from Tim, but he
> was in the car on the way to somewhere out of cellphone range :-).
>
> Issues addressed in this revision:
>
> millicores vs cores? Done: pros and cons described
> What happens if size of pod != size of containers? Done.  (It's now a bug,
> but can be relaxed later.)
> Change resource typename default "namespace" to be kubernetes.io/resources
> to allow greater future flexibility, and changed format to use RFC 3986
> (URI) spec.
> Clearer distinction between "external" and "internal" uses of fixed-point
> values, and when floating point is OK.
> Removed exponent notation (5.6e4) - we can always add it back.
> Removed u (micro) suffix.
> Clarified that unbounded may mean somewhat undefined.
> Added exponent-scaling notation for things like milli-units
> Added a note about disquiet with disk naming to provoke discussion (it's in
> the "futures" section).
>
> outstanding stuff:
>
> ensuring that the examples are strictly correct YAML (or JSON)
> fixing any new typos I introduced.
>
> Let's get this out there for wider discussion/feedback.
> Thanks,
>   john
>