* New (and last!) positioning scheme for GaspardTrackerTrapezoid in NPS

           ------
          /      \           ^
         /        \          | v
        /          \         |
       --------------   <-----
                           u = (128,1) - (1,128)
       w = u x v in direction of third stage

* Cartesian and spherical positioning of GaspardTrackerTrapezoid is consistent

* gaspHyde.detector has been modified to take these changes into account

* Stripping scheme in NPS and NPA still to be done