afp: implement copy
afp: implement copy

philipl/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,xkahn/gvfs-cmis,halfline/gvfs,cpatulea/gvfs,cpatulea/gvfs,gicmo/gvfs,philipl/gvfs,halfline/gvfs,xkahn/gvfs-cmis,halfline/gvfs,philipl/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,gicmo/gvfs