Updates to lauch files, add Utils with 7-Zip and lua

Known bug : .lauch file Generate doc doesn't work, it needs an update to luadocumentor.bat

Utils/lua/5.1/include/lua.hpp

@@ -0,0 +1,9 @@
+// lua.hpp
+// Lua header files for C++
+// <<extern "C">> not supplied automatically because Lua also compiles as C++
+
+extern "C" {
+#include "lua.h"
+#include "lualib.h"
+#include "lauxlib.h"
+}