gufo_windows pre-package for Strix Halo users

The latest unofficial gufo port to Windows now includes a pre-packaged library for Strix Halo users, allowing them to try gufo without building anything. Users can simply download and unpack the .zip file. Current Windows support is for "3.8 Flash," with "UD_Q4_XL" planned next. The developer notes that the project is "vibecoded" and requires bit-identical model output after changes.