Add Nvidia/AMD driver hint to use high perfomance GPU on laptops with hybrid graphics

[DJm00n]

This should help on laptops with hybrid graphics:

extern "C" {
_declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}

https://docs.nvidia.com/gameworks/content/technologies/desktop/optimus.htm

extern "C" {
_declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;
} 

https://community.amd.com/thread/169965

[remoe]

Yes, I can confirm this, because I use this on another platform:

extern "C" {
    __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
    __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}

Here is a PDF:

http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf