Illegal referenceUID in eta isoline after conversion from CPACS 2 to 3.0

[joergbrech]

The following lines will add a trailing edge uid to a CPACSEtaIsoLine:

cpacs2to3/cpacs2to3/convert_coordinates.py

Lines 138 to 140 in d6650ae

	elif uid in tedUids:
	# TODO has this even changed?
	pass

But according to CPACS (and also the TiGL implementation) the referenceUID must be a reference to either a wing segment or a wing component segment.

I suppose we should add the uid of the trailing edge device's component segment here?