EDG C++ front-end goes public

The EDG C++ front-end has been made public, allowing developers to use it as a compiler for C and C++ code. The EDG C++ front-end is now available on GitHub. The front-end is a component of the EDG compiler, which was previously only available as a commercial product. It has been used by companies such as Microsoft and IBM in the past. The EDG C++ front-end is a significant release for the open-source community, as it provides a free alternative to proprietary C++ compilers.