Use NXbeam_device to derive optical elements as lens, beam splitter, ...

[RonHildebrandt]

In creating the first version of NXraman, I thaught that in principle some NeXus definitions can be updated by deriving the respective elements from NXbeam_device?

This could be the case for:
NXbeam_splitter
NXdeflector (?)
NXfiber
NXlens_em (?)
NXlens_opt
NXmagnetic_kicker (?)
NXpolarizer_opt
NXseperator (?)
NXsolenoid_magnet (?)
NXwaveplate

Is this desired? It this easily doable by replacing NXobject in e.g. NXwaveplate(NXobject) by NXbeam_device?

Without this, the current implementation of a beam path via NXbeam_device is not possible in NXraman nor NXellipsometry.