This does not compile yet, but commit the files to save others the work
of creating the framework.
Known issues:
- Some editor-specific files do not find their headers due to missing
AdditionalIncludeDirectories
- VS2013.2 picks incorrect variadic template overloads. VS2013.3 might
do better.
- VS2013.2 C preprocessor mishandles C99 __VA_ARGS__ usage
