Fix mirrors, poly draw (WIP), and game over screen. Temp disable high scores.

PortabilityLayer/PLHacks.cpp

@@ -1,11 +1,19 @@
 #include "PLHacks.h"
 
+// Trademark issue
 bool IsMacPlusGraphicBanned()
 {
 	return true;
 }
 
+// Trademark issue
 bool IsMacPlusSoundBanned()
 {
 	return true;
 }
+
+// High scores disabled until dialogs work
+bool IsHighScoreDisabled()
+{
+	return true;
+}