Remove WITH_MINIMAID CMake option

Always build ITGmania with Minimaid

There's no harm in always having this built as it's configurable based on the LightsDriver field.

Update mmmagic.dll -> mmmagic64.dll to conform with the new dll filename

Also fix PacDrive.h header

src/arch/Lights/LightsDriver_Win32Minimaid.cpp

@@ -50,7 +50,7 @@ void setup_driver()
 LightsDriver_Win32Minimaid::LightsDriver_Win32Minimaid()
 {
 	_mmmagic_loaded=false;
-	hMMMAGICDLL = LoadLibraryW(L"mmmagic.dll");
+	hMMMAGICDLL = LoadLibraryW(L"mmmagic64.dll");
 	if(hMMMAGICDLL == nullptr)
 	{
 		MessageBox(nullptr, "Could not LoadLibrary( mmmagic.dll ).", "ERROR", MB_OK );