`emissions_profile_upstream()` with unmatched products should throw an error

[maurolepore]

Emission Upstream Profile is only applied to matched products, i.e. we ALWAYS have the data we need. -- Tilmon
#657 (comment)

Currently both emissions*() fiunctions behave the same way (as they share the underlying code for this feature). However Tilman notes that the *upstream() should never see data with unmatched products, so the most sensible thing to do is to throw an error or warning if such malformed input is passed (as I do many times in the tests).

[maurolepore]

This seems obsolete. The newer requirement is for emissions_profile*() to preserve unmatched products.

#639