TagLibAmalgam: A new way to use TagLib

[Vinnie Falco]

Thanks to the help from the project maintainers, I am proud to present:

TagLibAmalgam: https://github.com/vinniefalco/TagLibAmalgam

This is a whole new way to include TagLib to your program. Instead of
dealing with CMake or messy include paths, just drop the one .cpp file
into your existing IDE-specific project file or Makefile, and include
one .h, and presto you have TagLib!