cmake VecGeom examples

root-project/root cmake/modules/FindVecGeom.cmake :28 

find_package(VecGeom ${VecGeom_FIND_VERSION} NO_MODULE PATHS $ENV{HOME} $ENV{VECGEOMROOT} )

Geant4/geant4 cmake/Modules/G4OptionalComponents.cmake :262 

find_package(VecGeom 1.2.6 REQUIRED)