Speedup I3HighestEparticleExtractor + additional features

[Aske-Rosted]

This PR introduces two new features to the I3HighestEparticleExtractor.

• primary_type - Records the PID of the primary of the particle that produces the final particle used as base for the Highest Energy Particle
• primary_is_nu - Checks whether the primary of the Highest Energy Particle is a neutrino.

primary_is_nu can be used to check whether the particle found was produced by a neutrino or is from a coincident muon in the case of the nugen files.

The changes introduced by #822 included the following function call.

frame[self.mctree].is_in_subtree(
                        p.id, track.GetI3Particle().id
                    )

Which is very computationally expensive especially for high energy CORSIKA files. Furthermore the check is irrelevant for CORSIKA where everything is considered to be in the sub-tree of the atmospheric shower.