ErrLib 1.1

• Add support for custom logging target (ErrLib_SetLoggingCallback)
• Add C++ exception API (ErrLib_CPP.h)
• Add high-level stack trace API (ErrLib_Except_GetStackTraceData)
• Add NuGet package
• Add API docs using Doxygen
• Fix crash in ErrLib_PrintStack on x64
• Fix ErrLib_PrintStack crash on Win7 when reading PDB symbols built with /DEBUG:FASTLINK option

ErrLib First Release

This is the first version of the library. There might be bugs so do some testing before using in serious projects