control_metadata: Add GetRawBytes function to NACP

Returns the raw bytes of the NACP file. Needed for GetApplicationControlData which returns the raw, unprocessed NACP to the game.

src/core/file_sys/control_metadata.h

@@ -81,6 +81,7 @@ public:
     u64 GetTitleId() const;
     u64 GetDLCBaseTitleId() const;
     std::string GetVersionString() const;
+    std::vector<u8> GetRawBytes() const;
 
 private:
     std::unique_ptr<RawNACP> raw;