[PATCH v6 0/7] MR6892: dlls/propsys: Implement IPropertyDescription for several known system properties.

[Vibhav Pant (＠vibhavp)]

This MR adds a very basic implementation of `IPropertyDescription` for system defined properties (i.e, the ones in \<propkey.h\>). This is needed to support the [`Properties`](https://learn.microsoft.com/en-us/uwp/api/windows.devices.enumeration.device...) method for `IDeviceInformation` in Windows.Devices.Enumeration (!6874).

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  v6: dlls/propsys: Implement IPropertyDescription for several known system properties.
      dlls/propsys: Add IPropertyDescription stub for system defined properties.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6892