Initial commit. Transferring files from etsardou/nao_extras. Adding nao_vision and nao_audio functionalities
SoundLocated event works
Added the nao_interaction metapackage, the nao_interaction_launchers, nao_interaction_msgs, nao_vision and nao_audio packages
Corrected maintainer name in package.xmls
Merge pull request #1 from etsardou/devel

Merged, thanks