IconSync.cpp: Move Icon creation script

* Move Icon creation script/program to the scripts folder.
It is definitely not a test.
* Introduce scripts/development folder for development scripts, in contrary to scripts/server for example.
Overlay: Var init, comment, error loggin.
Overlay: Code comments
Overlay: Add myPresentEx function
Overlay: Move logic to function, Varnaming, msgfix

- Move logic to new function IsFnInModule.
Overlay: Introduce hook for ResetEx. Hook PresentEx.

* For D3D9Ex
** Hook PresentEx
** Hook ResetEx
Overlay: Fix address offset
Overlay: Use string var instead of hardcoded strings
Overlay: Move DllMain logic into functions
Overlay: Move logic into function ..IsBlacklisted
Overlay: Pass on procname buffer