3rdparty: embed pkgw/dbus-cplusplus #413
Unfortunately, the version of dbus-c++ in the debian/ubuntu repos have stopped building correctly since at least Ubuntu 17.10, i.e. recent distros that ship with gcc >= 7.2).
https://github.com/pkgw/dbus-cplusplus appears to contain the necessary fixes to make tizonia build and work correctly with gcc 7.2.
This is issue is created to embed the sources from https://github.com/pkgw/dbus-cplusplus and build tizonia using this dbus-c++ version.