PC Engine CDROM timing corrections (#412)

1) Fix for Issue 120 broke timing for cut-scene videos.  Restoring delay for SAPSP-type seeks  (issue #145)

2) fixes for issues #120 & #145:
a) PAUSE placed head just outside of minimum-seektime area -> when playback was restored, it was late, contributing to hangs (i.e. Bomberman Panic Bomber).  Increase minimum seektime region, so as to include this case.
b) Moved logging printf to AFTER SendStatus on SAPEP transactions; may help reduce hangs (i.e. Bomberman Panic Bomber).

3) Minor adjustment to improve timing on Sherlock Holmes games' video playback.

support/pcecd/pcecd.cpp

@@ -34,7 +34,7 @@ void pcecd_poll()
 			if (--adj <= 0) adj = 3;
 		}
 
-		if (pcecdd.has_status ) {
+		if (pcecdd.has_status && !pcecdd.latency) {
 
 			pcecdd.SendStatus(pcecdd.GetStatus());
 			pcecdd.has_status = 0;