Add FailAtEnd, which means "check failure only at the very

end of the song" (intended for use with "PassMark", which
needs a better name).  This isn't called "FailEndOfSong" to
avoid confusion, and was the prompting for renaming
FailEndOfSong.)

stepmania/src/SongOptions.h

@@ -25,6 +25,7 @@ public:
 	enum FailType { 
 		FAIL_IMMEDIATE=0,			// fail immediately when life touches 0
 		FAIL_IMMEDIATE_CONTINUE,		// fail immediately when life touches 0, but allow playing the rest of the song
+		FAIL_AT_END,				// fail if life is at 0 when the song ends
 		FAIL_OFF };					// never fail
 	FailType m_FailType;
 	float m_fMusicRate,	m_SpeedfMusicRate;