Groveler: add proper OUTPUT-FILES and INPUT-FILES methods
Groveler: add proper OUTPUT-FILES and INPUT-FILES methods

Fixes the bug that modifying a grovel-file or a wrapper-file caused
the auto-generated lisp file to just get recompiled without being
re-generated.

3b/cffi,cffi/cffi,cffi/cffi,stassats/cffi,stassats/cffi,dkochmanski/cffi,cffi/cffi,mcna/cffi,attila-lendvai/cffi,dkochmanski/cffi,dkochmanski/cffi,mcna/cffi,3b/cffi,3b/cffi,stassats/cffi,attila-lendvai/cffi