log4shib 2.0.0

- HAVE_SNPRINTF : StringUtil.cpp
- LOG4SHIB_EXPORT : Export.hh
- LOG4SHIB_UNDEFINE_NOGDI : NTEventLogAppender.hh, MSThreads.hh
- LOG4SHIB_UNDEFINE_WIN32_LEAN_AND_MEAN : NTEventLogAppender.hh, MSThreads.hh
- NOGDI : NTEventLogAppender.hh, MSThreads.hh
- PREFER_PORTABLE_SNPRINTF : StringUtil.cpp
- VSNPRINTF : StringUtil.cpp
- WIN32_LEAN_AND_MEAN : NTEventLogAppender.hh, MSThreads.hh, Win32DebugAppender.cpp