acf / addconfig               Adds a new text-to-speech configuration

   Format:
      ;acf <name>             Adds configuration <name> with default settings
      ;acf <name> <engine>    Adds configuration <name> using the <engine>

   Notes:
      If you have one or more of the text-to-speech engines installed on your
         system, Axmud can use them to convert text to speech.
      The engines currently supported on MS Windows are eSpeak, espeak-ng and
         Swift. The engines supported on Linux are eSpeak, espeak-ng, Flite,
         Festival and Swift.
      Axmud also uses a dummy engine, called 'none'. If Axmud tries to convert
         text to speech using the dummy engine, you'll hear nothing.

      Axmud stores a number of TTS configurations. Each configuration stores an
         engine, voice, speed and pitch setting, among others. Text received
         from the world uses one configuration, system messages use another, so
         it's easy to customise the configurations so that they read aloud in
         different voices.
      You can use this command to add a new configuration. You can then use the
         ';modifyconfig' command to modify the new configuration and the
         ';speak' command to test it, if you want to.

      Configuration names must be no longer than 16 characters, contain only
         A-Z, a-z, underlines and 0-9 (not the first character) and not be one
         of Axmud's reserved names (see the ';listreserved' command). Non-Latin
         alphabets are acceptable.
      If you specify <engine> it should be one of Axmud's supported
         text-to-speech engines: 'espeak', 'esng', 'flite', 'festival', 'swift'
         or 'none'. If you don't specify an engine, 'espeak' is used.

   User commands:
      acf / addcf / addconfig
