Some sound changes (thanks to ADoS)

- Hiss in female scream sound removed (ADoS)
- Startup music dehissed by extracting it from the Mac resource file (CM) and doing further processing to reduce the hiss (ADoS)
- Sound 99 (formerly a null sound) replaced by sound 60 from the Mac resource file (CM)
- Includes the Python script used to convert extracted 'snd ' resources to WAV

rsrc/strings/sound-names.txt

@@ -97,4 +97,4 @@ Enter Dungeon
 Sleep
 Normal Ouch
 Missile Hit
-No Sound
+Little Boom