Added ability to ignore input/output from specific modules
Added ability to ignore input/output from specific modules

Based on sections called [ignored inputs] and [ignored outputs] in the config file.
These contain lists of modules (eg. 'numpy') or 'all' to ignore inputs or outputs
from all modules.

Fixes #56

musically-ut/recipy,github4ry/recipy,recipy/recipy,MBARIMike/recipy,MBARIMike/recipy,github4ry/recipy,MichielCottaar/recipy,musically-ut/recipy,MichielCottaar/recipy,recipy/recipy