MxAudioManager: Destructor, LockedReinitialize, Reinitialize (#125)

* MxAudioManager: Destructor, LockedReinitialize

* MxAudioManager::Reinitialize, fix LockedReinitialize logic

* MxAudioManager cleanup

- fix param in LockedReinitialize, mark that function as private/give it a better param name

* Match LockedReinitialize, fix function declarations, add/match InitPresenters

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>

LEGO1/mxaudiomanager.h

@@ -0,0 +1,28 @@
+#ifndef MXAUDIOMANAGER_H
+#define MXAUDIOMANAGER_H
+
+#include "decomp.h"
+#include "mxmediamanager.h"
+
+// VTABLE 0x100dc6e0
+class MxAudioManager : public MxMediaManager
+{
+public:
+  MxAudioManager();
+  virtual ~MxAudioManager() override;
+
+  virtual MxResult InitPresenters(); // vtable+14
+  virtual void Destroy(); // vtable+18
+
+private:
+  void LockedReinitialize(MxBool);
+
+  static MxS32 g_unkCount;
+
+protected:
+  void Init();
+
+  undefined4 m_unk2c;
+};
+
+#endif // MXAUDIOMANAGER_H