Intersection with surfaces: update and refinement

Closes #613 (closed) Relates to #659 (closed)

The following updates towards a smarter intersection handling are scheduled:

• have a non-binary return of Intersection with an IntersectionStatus
• remove NavigationDirection::anyDirection in order to avoid potential stepLength to be 0
• remove FullIntersection and only support ObjectIntersection
• should make BoundarySorter obsolete, but would need a sorter which respects overstepLimits

This is tackled in branch: https://gitlab.cern.ch/acts/acts-core/commits/613-surface-intersection

An initial attempt (now superseded) was performed (for reference) https://gitlab.cern.ch/acts/acts-core/commits/613-surface-intersection-update

The change to a more refined Surface::intersect() method it should be possible to also tackle the overstepping problem in the Propagator and Navigator.