Add missing NCIt and DOID concepts

[jsstevenson]

Merges for the normalization endpoint are showing about 350 concepts from DO and NCIt that our first pass missed. For NCIt, many of them are subclasses of "finding" (not disease/disorder), but not all (it's not clear why ncit:C98923 isn't getting picked up, for example).

A full list is here: https://gist.github.com/jsstevenson/2d625d962edeeb21b2fd3f6a974c75eb'

Many of the DOID concepts seem to be deprecated (but still referenced by Mondo -- should be ok to skip)

[github-actions]

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