[ ] Eliminate the need for "build-libs.sh/build-libs.bat" at the toplevel with proper MSBuild idioms
[ ] Integrate the "update-solution-files" with each build, so we auto-update the files on commits
[ ] Make it work with MSBuild instead of xbuild
+[x] Design a system for listing resources, so we avoid the ".pre" that runs resgen or copy by hand, because this ruins dependencies. Alternatively, have @COPY@ be a "Copy if newer"