SERVER-13759: vcxproj generator improvements

1. VCXProj now builds all .cpp files itself
2. Moved obj files to Build/ to keep repo clean
3. Split jstoh so that it can be called by vcxproj file
4. Make_Vcxproj - fixed to handle cl temp files, fixes now that vcxproj builds
generated files, and fix _TARGET_ search and replace

Note: Depends on python installation