libflite

Merge pull request #9 in SD/libflite from ~SAFAROV/libflite:specUP to master

* commit '255e648066eb04513c5c0566b2886c098000f0b9':
  FS-11345: Added RPM packaging for modern RPM dist (Fedora 29)
  adding pkg-config file for flite
  Updated debian scripts
  Update to version 2.1 release 3