Now that nbis is a static library it should be possible to compile it
without any fprint-built dependency, although since it included fp_internal
there was a compile-time dependency on the fp-enums that can be generated at
later times.
So:
- Move nbis-helpers to nbis includes (and remove inclusion in fp_internal)
- Move the Minutiae definitions inside a standalone fpi-minutiae header
- Include fpi-minutiae.h in fp_internal.h
- Include nbis-hepers.h and fpi-minutiae.h in nbis' lfs.h
- Adapt missing definitions in libfprint
