Core/Stream: Add MemoryMapped stream options (allowing for direct memory access)

src/Nazara/Core/MemoryStream.cpp

@@ -62,6 +62,11 @@ namespace Nz
 		// Nothing to flush
 	}
 
+	void* MemoryStream::GetMemoryMappedPointer() const
+	{
+		return m_buffer->GetBuffer();
+	}
+
 	/*!
 	* \brief Reads blocks
 	* \return Number of blocks read