Update to c++20

No actual code change, just CMake flags.

Intersection fixes

Bug fixes and implementation improvements for intersection methods.

Geometry fixes

Refinements, fixes and extensions to Geometry and Intersection classes.

v2.4.0

Define basic geometry classes and implement intersection methods. These will be used for fit extrapolation and sampling.

v2.3.1

Protect end processing

v2.3.0

Release to fix RPATH problems, resolves issue 166

v2.2.1

Bug fixes to deltaT derivatives and line traj range. Change KLine parameterization. Small interface additions and implementation simplification.

Refactor Material Xing

Refactor the Material Xing interface to put parametric data in the detector object instead of the fit object, to allow more flexible update algorithms. Also support multiple magnetic field maps.

Divergence testing improvements

Interface cleanups and divergence testing improvements

v2.0.1

Bug fixes