add angle conditioning

• extend Geometry interface with localDirection(G4FastTrack const& aFastTrack) - to compute the local direction in a right handed coordinate system where the z-axis points into the calorimeter, normal to the calorimeter planes
• add localDir to ModelInterface::prepareInput(...) and ModelInterface::convertOutput(...) to allow for angular conditioning on one or two angles
• implement this in RegularGridBIBAEModel
  • using condition angle as local theta (polar angle) and rotate output of inference model by local azimuth angle phi
• use angular conditioning in Par04VAE
• add property CorrectForAngle to geometry models PolyhedraBarrelGeometry and EndcapGeometry
  • use true for GAN and Par04VAE, false for BIB-AE