builds copyparty32.exe, fully standalone, compatible with 32bit win7-sp1 and later

requires a win7 vm which has never been connected to the internet and a host-only network with the linux host at 192.168.123.1

copyparty.exe is built by a win10-ltsc-2021 vm with similar setup

first-time setup steps in notes.txt

run build.sh in the vm to fetch src + compile + push a new exe to the linux host for manual publishing

ffmpeg

built with ffmpeg-windows-build-helpers and this patch using these steps