Protections diodes may not be able to play their role if they are
separated from their cluster by upper level layers (METAL4/METAL5).
This seems not to diminish the total number of diodes.
* New: In Anabatic::NetData, add a set of non move up segments in
the object. To tag global wires that are part of a cluster.
* New: In Anabatic::AutoSegment, add support for a SegNoMoveUp
flag. This flag is propagated through _makeDogleg() .
Used in ::canMoveUp() and ::canPivotUp().
* New: In Anabatic::NetBuilder, add NetData to the attributes so
we can extract the NoMoveUp infomation given by the antenna
protect stage.
* New: In NetBuilderHV::_do_globalSegment(), lookup NoMoveUp
information from NetData to put it in AutoSegment.
* New: In AntennaProtect(Net*), flags the RoutingPad clusters wires
as non movable up.
* New: In AnabaticEngine::breatAt(GCell*), propagate the SegNoMoveUp
flags. Based on NetData.
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