IDZ only supports D3D11 and Ongeki/Unity uses D3D11 by default.
This also includes a window hook and fullscreen fix for problematic
games (I am looking at you IDZ).
This change deletes the GetProcAddress hook and exports symbols
corresponding to the hooked functions from each hook DLL instead;
we stop at redirecting LoadLibrary/GetModuleHandle calls to the
hook DLL. This simplified approach has less hidden magic going on
behind the scenes and is more readily composable (i.e. a hook DLL
can export redirect symbols for more than one dynamically-loaded
DLL).
