w32_common: implement support for --screen-name

[ZenoArrows]

This PR implements Win32 support for --screen-name and --fs-screen-name. Detection is based on the EDID friendly monitor name that also shows up in advanced display settings control panel.

Implementation is done through the Display Devices API. This does not directly give us an HMONITOR handle, so instead we query the GDI device name in the form of \\.\DISPLAY1. Once the GDI device name has been found we can use EnumDisplayMonitors and GetMonitorInfoW to find the matching HMONITOR.

Parts of the implementation are based on example code found in the documentation.

[dyphire]

Since the EDID friendly monitor name can already be obtained, when it exists should also be applied to the property of display-names, which will provide a more reasonable property for conditional auto profiles.
This is necessary on windows because the display-names that mpv uses are in the form \\.\DISPLAY#, which are completely useless for setting persistent profiles as the numbers can change between boots or display configurations.

[ZenoArrows]

Just to confirm I'm understanding correctly, your suggestion is to also expose the EDID display names in the display-names property? That sounds like a good idea to me, I'll implement that.

[Dudemanguy]

Should use talloc here instead.

[kasper93]

Please don't duplicate code, look at https://github.com/mpv-player/mpv/blob/01c5346d1ada7185710963628012a5c3dcf1ce74/video/out/win32/displayconfig.c

You can use existing functions and add new ones there if needed.