[libvirt] [libvirt-designer PATCHv4 0/9] Handle more devices in GVirDesignerDomain

Hey, Here is a new version of that series with the issues raised by Michal addressed. Changes since v3: - don't automatically add USB/smartcard/graphics devices, but add options to virtxml to explicitly request those - return an error when gvir_designer_domain_add_graphics() fails to automatically add the spice agent channel - set a GError when gvir_designer_domain_get_fallback_devices() could not find any device. Christophe