[Atlas-anchors-pilot] Provisional hardware specs for Atlas Anchors

[Randy Bush]

> Initially it will be a target and its main purpose is to be one.
> Soon after we will add an probe (initiator) since that is very easy
> and yields a powerful probe at little extra cost.
> Should there be reasons not to do that, lets hear them.

sounds good to me.

we, well daniel lebrun from ucl, has submitted (not yet acepted) a talk
on using atlas active probes for a very ambitious experiment.  and we
supplied some large targets.  so we like source and target.

randy