Fixed bugs that were preventing NVR and Flash files from behind saved;

A lot of clean ups from waltje;
Start of a directory structure for the code, thanks to waltje.

src/SOUND/snd_speaker.h

@@ -0,0 +1,8 @@
+void speaker_init();
+
+extern int speaker_mute;
+
+extern int speaker_gated;
+extern int speaker_enable, was_speaker_enable;
+
+void speaker_update();