Adjust AFPTrack to set nHoles to be unsigned int to avoid conflict
Conflict created for nHoles when adding ACTS to the trigger.
Produces the following exception:
EDMCreatorAlg 0 0 ERROR SG::excauxtypemismatch: Type mismatch for aux variable
::nHoles' (1323); old type is unsigned int new type is int. Old allocator type is std::allocator new allocator type is std::allocator`