Bug fix: TupleToolGeometry to always fill AllDIRA
When FillMultiPV is True, AllDIRA must always be filled. Otherwise ROOT crashes because of inconsistent Trees if events with no PVs are encountered (or more generally if there are events with and without PVs). This is quitre rare, but happens in CEP as found out by @crsanche .
The fix is to always fill it. It will be an empty array, but not inexistent.