Bundle source files (Main.cpp, ExtractCallbackConsole.cpp, MainAr.cpp,
StdAfx.h) use relative #includes like ../../../Common/ and ../../IPassword.h
that work on Linux via POSIX symlinks but fail on Windows where no symlinks
exist in the bundle tree.
Adding versions/VER/CPP/7zip/UI/Common/ as an AdditionalIncludeDirectory
makes MSVC resolve the ../ segments correctly against that anchor directory,
reaching the vendor files without requiring symlinks.
Fixes all three bundles: 25.01, 26.00, 26.01.