qxl abi: add QXLRect
qxl abi: add QXLRect

elmarco/spice-protocol,vdiot/spice-protocol,SPICE/spice-protocol,SPICE/spice-protocol,vdiot/spice-protocol,dezelin/spice-protocol,dezelin/spice-protocol,vdiot/spice-protocol,dezelin/spice-protocol,elmarco/spice-protocol,fgouget/spice-protocol,fgouget/spice-protocol,fgouget/spice-protocol,freedesktop-unofficial-mirror/spice__spice-protocol,SPICE/spice-protocol,freedesktop-unofficial-mirror/spice__spice-protocol,Fantu/spice-protocol,elmarco/spice-protocol,Fantu/spice-protocol