Bug Fixes & sign language conversion

 - Fixed bug where you could wield a gun while on your back
 - Fixed Bug where you could drop the offhand Icon
 - updated Vox Shuttle now says Aurora rather than Exodus
 - Added debug message to auto-traitor (Still need live confirmation that it works)
- Added visual languages
- Sign Language is now a visual language
- New visual languages can be added by adding 'vocal = 0' to the language datum
- Visual languages can be used in a vacuum
- Visual languages can't be used on the radio
- Added confirmation message for Request Console Faxes