Make the movie player work somewhat.

THPs are *almost* just a bunch of JPEGs so the TL;DR is BE fixes and replacing the decoding with libjpeg-turbo.

Needs changes to thp.h which should be removed from Aurora, will do that later.

Also audio not implemented yet.

libs/JSystem/src/JAudio2/JASAiCtrl.cpp

@@ -260,6 +260,10 @@ void JASDriver::finishDSPFrame() {
 }
 
 void JASDriver::registerMixCallback(MixCallback param_0, JASMixMode param_1) {
+#if TARGET_PC
+    JASCriticalSection section;
+#endif
+
     extMixCallback = param_0;
     sMixMode = param_1;
 }