I would like to be able to extract attributes from devices that have no packages. These would be
devices that I've added an _EXTERNAL_ attribute to so that they are shown on the schematic but
are not part of the board. It seems all the ULP's I've looked at only extract attributes from devices that
have an associated package - for obvious reasons. Want I want to do is create a list of the _EXTERNAL_
devices and any attributes associated with them.