[introspection] Add missing annotations to GDataGContactLanguage
[introspection] Add missing annotations to GDataGContactLanguage

Distrotech/libgdata,Pecisk/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata,pwithnall/libgdata,Pecisk/libgdata-gtasks,Pecisk/libgdata,pwithnall/libgdata,Pecisk/libgdata-gtasks,Pecisk/libgdata,Distrotech/libgdata,GNOME/libgdata