Changed logging in AlienPartGenerator (#29)
Changed logging in AlienPartGenerator (#29)

* changed logging in PartGenerator to reduce log spam

* changed body part generation logging some more

- put all body addon messages for a single race under a single log entry
- a warning is displayed if a hediff or backstory graphic entry is defined but no graphics can be loaded

by FxWolfxe
erdelf/AlienRaces,erdelf/AlienRaces