- boost-spirit dependency needed to be installed
- Visual Studio wanted boost/filesystem.hpp included in more places
- a deprecated enum was removed from new versions of boost, so we use
its replacement enum now
- vcpkg repository is now pinned to a commit where boost 1.84 libraries
work smoothly, there should be no more surprises
- vcpkg dependencies now cache, so successive CI runs are dramatically
faster
- for win-scons, we need to use 'call' in our batch script to source
vcvarsall.bat
- I updated the includepath and libpath we pass to win-scons to match
reality, but it still can't find any vcpkg libraries. This will need
further sleuthing
These were very shoddily put together!
It seems the person who made them never really tried building
the editors or the tests.
Also included here are a couple of minor source changes that are needed
to make the project files build.
