Add files for rebased serializer refactoring done by Ivan

lib/serializer/CMemorySerializer.h

@@ -0,0 +1,43 @@
+
+/*
+ * CMemorySerializer.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include "BinarySerializer.h"
+#include "BinaryDeserializer.h"
+
+/// Serializer that stores objects in the dynamic buffer. Allows performing deep object copies.
+class DLL_LINKAGE CMemorySerializer
+	: public IBinaryReader, public IBinaryWriter
+{
+	std::vector<ui8> buffer;
+
+	size_t readPos; //index of the next byte to be read
+public:
+	BinaryDeserializer iser;
+	BinarySerializer oser;
+
+	int read(void * data, unsigned size) override; //throws!
+	int write(const void * data, unsigned size) override;
+
+	CMemorySerializer();
+
+	template <typename T>
+	static std::unique_ptr<T> deepCopy(const T &data)
+	{
+		CMemorySerializer mem;
+		mem.oser & &data;
+
+		std::unique_ptr<T> ret;
+		mem.iser & ret;
+		return ret;
+	}
+};