dt: Add 18.32 recipe

This includes the version 18.32; this release has been taken from the
Fedora package repository at:

    http://pkgs.fedoraproject.org/git/rpms/dt.git



Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>