[introspection] Add missing annotations to GDataContactsService
[introspection] Add missing annotations to GDataContactsService

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