SpacePoint formation in Examples

[asalzburger]

With the new Geometric/Smearing digitisation, we now produce (as it should be) local measurements instead of global measurements. The latter was the case in the TrackML dataset.

The local measurements need to be converted into SpacePoint types for:

• Pixels: by simply applying local to global transformations
• Strips: by either applying local to global, or by combining strips from two sides to form a space point under beam spot/vertex assumption

The code for the space point formation exists, but needs to be reviewed and implemented: in the Examples we should try to establish a SpacePointFormation Algorithm, that does these operations.

For establishing the functionality of the TrackML dataset, this also needs a new 'event-xxxx-spacepoints.csvoutput file with dedicated writer inIo/Csv`.

[asalzburger]

Obsolete.