Add defaults for config file locations
Add defaults for config file locations

Fixes #10 by avoiding a crash when no config file is present.

google/aiyprojects-raspbian,t1m0thyj/aiyprojects-raspbian,TimoCrafter/aiyprojects-raspbian,t1m0thyj/aiyprojects-raspbian,google/aiyprojects-raspbian,TimoCrafter/aiyprojects-raspbian,google/aiyprojects-raspbian,antamb/google-personal-assistant,ktinkerer/aiyprojects-raspbian,ktinkerer/aiyprojects-raspbian,google/aiyprojects-raspbian,google/aiyprojects-raspbian,antamb/google-personal-assistant