Removed .song files from distribution
[lamestation] Removed PlaySequence functionality because it's just another (less useful) music format to be maintained; added clk-freq based music loop timing that allows song tempo to be specified in beats-per-minute (all notes are eighth-note granularity); removed in-object sine table which was replaced by on-ROM sine table a very long time ago; did some variable/comment cleanup in LameAudio.
Updated game songs with new tempo settings