[PATCH v2 0/5] MR6452: winewayland: Move client surface to wayland_win_data.

[Rémi Bernon]

Preparation for https://gitlab.winehq.org/wine/wine/-/merge_requests/6323

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  v2: winewayland: Detach client surfaces when they are not visible.
      winewayland: Move client surface to wayland_win_data struct.
      winewayland: Pass hwnd to and return client rect from wayland_surface_get_client.
      winewayland: Introduce a new wayland_client_surface_attach helper.
      winewayland: Move wayland_surface_get_client to window.c.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6452