Fix compile with Dusk's mtx lib

Move Mtx33 and similar types to JMath

Rename mtx.h in decomp to _mtx.h so Aurora's header is used instead.

include/JSystem/J3DGraphBase/J3DStruct.h

@@ -5,6 +5,7 @@
 #include <dolphin/mtx.h>
 #include <dolphin/mtx.h>
 #include "global.h"
+#include "JSystem/JMath/JMath.h"
 
 /**
  * @ingroup jsystem-j3d

include/JSystem/J3DGraphBase/J3DSys.h

@@ -4,6 +4,7 @@
 #include <dolphin/gx.h>
 #include <dolphin/mtx.h>
 #include "JSystem/J3DAssert.h"
+#include "JSystem/JMath/JMath.h"
 
 enum J3DSysDrawBuf {
     /* 0x0 */ J3DSysDrawBuf_Opa,

include/JSystem/J3DGraphBase/J3DTransform.h

@@ -2,6 +2,7 @@
 #define J3DTRANSFORM_H
 
 #include <dolphin/mtx.h>
+#include "JSystem/JMath/JMath.h"
 
 struct J3DTextureSRTInfo;