After switching away from VS, I realized the buildscript wouldn't detect the standalone MSVC compiler, because for whatever genius reason, MS installs that in the x86 program files directory...
Also fixes some duplicate definitions and a missing library that MSVC doesn't like
ah compilers...
Reviewed-on: https://gitea.tendokyu.moe/TeamTofuShop/segatools/pulls/59
Co-authored-by: kyoubate-haruka <46010460+kyoubate-haruka@users.noreply.github.com>
Co-committed-by: kyoubate-haruka <46010460+kyoubate-haruka@users.noreply.github.com>