Fixed a bug in GBL intersection calculation
@mvicente reported that the second to last layer cannot be used as a DUT
(FATAL) [R:DUTAssociation:MIMOSA26_5] Fatal internal error
Track Object GblTrackDirection after the last telescope plane not defined
Cannot continue...
Digging into it I found a mistake in the intersection(z)
calculation logic.
Instead of picking the closest upstream plane to given z-Position, the nearest downstream plane was selected.
This also results in the kink on the nearest downstream plane has been ignored in the calculation of the intersection point.
With this fix, I expect a slightly better resolution on the DUT.