GEANT4 G4MultiUnion::InsideNoVoxel became private in 11.4

[ClarkMcGrew]

The G4MultiUnion::InsideNoVoxel method has been made private in G4 11.4, but was public in G4 11.2. I modified the G4MultiUnion.hh file by hand to make it public, but looking at the include file this seems like an intentional upstream change.

[plexoos]

My guess is that G4MultiUnion::InsideNoVoxel(const G4ThreeVector& aPoint) is now considered an internal helper, and that users were expected to call the public G4MultiUnion::Inside(const G4ThreeVector& aPoint) interface all along instead. The implementations look quite different to me, though, so I’m not sure whether it is really safe to switch.