WIP: Use host device functions in beamline PV finding
Now use host device functions in all algorithms in beamline PV finding and call them in GPU and CPU version.
The host device functions live in cuda/PV/beamlinePV/include/pv_beamline_utils.cuh
in the PV::Beamline namespace
To do: test everything with more events (so far only tested with 10 events)