integrated zlib and libpng; initial driver work

hecl/driver/CToolAdd.hpp

@@ -0,0 +1,17 @@
+#ifndef MAIN_CPP
+#error This file may only be included from main.cpp
+#endif
+
+#include "CToolBase.hpp"
+
+class CToolAdd : public CToolBase
+{
+public:
+    CToolAdd(const std::vector<std::string>& args)
+    : CToolBase(argc, argv)
+    {
+    }
+    ~CToolAdd()
+    {
+    }
+};