objects in the pform,
Handle named events within the mix of net events
and edges. As a unified lot they get caught together.
wait statements are broken into more complex statements
that include a conditional.
Do not generate NetPEvent or NetNEvent objects in
elaboration. NetEvent, NetEvWait and NetEvProbe
take over those functions in the netlist.
instead of a signal pointer,
Wire attributes added,
Ability to parse UDP descriptions added,
XNF generates EXT records for signals with
the PAD attribute.