TomapProjector attribution match options

• lemmaKeys, caseInsensitive and ignoreDiacritics control both projection and attribution. Make separate options for attribution

• add option to match surface form OR lemma

@ldeleger

We can implement this, however the classifier saved by ToMapTrain must be aware of these options.

That means that a classifier file will only be able to function for the specific matching options it was created with. Would that be okay?

This also means that there might be different matching and projection options in ToMapProjector. We can either:

• override the projector options (and issue a warning at runtime)
• let the user shoot their feet