Xpra: Ticket #403: win32 system tray should load image data from a buffer

At the moment, the ugly code uses a temporary file to call LoadImage.

We should do something better, see:

Fri, 15 Nov 2013 14:13:28 GMT - Antoine Martin: status, milestone changed; resolution set

Has been done in r4637 using PIL + win32gui.SetPixelV (setting one pixel at a time is very inefficient, but we're typically dealing with 32x32 icons here so this doesn't really matter)

Sat, 23 Jan 2021 04:54:24 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/403