MP4 convert optimised.

MP4 code sanitised
Fixed metadata FLV bug
Sanitised code
MP4 reorganisation in lib
MP4 STCO sorting only needs 1 loop now
Starting big scope overhaul for memory efficiency

lib/mp4_ms.h

@@ -0,0 +1,40 @@
+#pragma once
+#include "mp4.h"
+
+namespace MP4{
+  class SDTP: public Box{
+    public:
+      SDTP();
+      void setVersion(uint32_t newVersion);
+      uint32_t getVersion();
+      void setValue(uint32_t newValue, size_t index);
+      uint32_t getValue(size_t index);
+      std::string toPrettyString(uint32_t indent = 0);
+  };
+        
+  class UUID: public Box{
+    public:
+      UUID();
+      std::string getUUID();
+      void setUUID(const std::string & uuid_string);
+      void setUUID(const char * raw_uuid);
+      std::string toPrettyString(uint32_t indent = 0);
+  };
+
+  class UUID_TrackFragmentReference: public UUID{
+    public:
+      UUID_TrackFragmentReference();
+      void setVersion(uint32_t newVersion);
+      uint32_t getVersion();
+      void setFlags(uint32_t newFlags);
+      uint32_t getFlags();
+      void setFragmentCount(uint32_t newCount);
+      uint32_t getFragmentCount();
+      void setTime(size_t num, uint64_t newTime);
+      uint64_t getTime(size_t num);
+      void setDuration(size_t num, uint64_t newDuration);
+      uint64_t getDuration(size_t num);
+      std::string toPrettyString(uint32_t indent = 0);
+  };
+
+}