Extrapolation to calo surface

[madbaron]

This PR adds the extrapolation of the tracks to the calorimeter surface.

This is still work in progress:

• the code compiles
• the addition of the track state at the calorimeter surface to the track is still missing
• crashes at run time on the call to the propagator with a "TUnixSystem::Di... FATAL segmentation violation"

I am creating this ahead of time since I'll have now a couple of busy days, in case superexperts like @kkrizka @spagangriso or @pandreetto get a chance to take a look.

[madbaron]

Note to self: I think once the propagator crash is solved, the extrapolation should probably be moved to ACTS2Marlin_track inside Helpers.cxx

[madbaron]

Moved to Helpers.cxx.
This also fixed the crash at runtime.
Still missing the saving of the TrackState - coming soon.

[madbaron]

Ok great success so far.
The extrapolation works and the states at the calorimeter face are compatible with those from the Refit processor.

One last thing missing: the cylindrical volume has no caps, so the forward tracks are still missing the extrapolation

[madbaron]

All good, ready to merge.

In the future / next release we'll want to:

• start the extrapolation from the last spacepoint instead of the perigee
• add extrapolation to muon system

Both these are not urgent for this release