ui/dbus: add org.qemu.Display1.UIInfo interface

Currently, the SetUIInfo method cannot set a refresh rate.
Simply adding a refresh_rate argument would break the method signature.

This patch adds the UIInfo interface containing
  * property `Supported` indicating whether console UI info is supported.
  * the method `Apply` taking a dictionary as input.
  * the method `Get` returning the current UI info as a dictionary.

Message-ID: <20260830054641.45437-2-colazcyg@gmail.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Chengyang Zhu <colazcyg@gmail.com>
2 files changed