Various fixes

[CarterLi]

[LinusDierheimer]

Can we strip Apple and Intel prefixes from the GPU name and set vendor accordingly? Would not only give a prettier output, but format strings would work better too.

Personally i would also remove the Graphics suffix.

[CarterLi]

Problem is that the string format returned is not guaranteed. What about AMD graphic cards?

[LinusDierheimer]

I would write code similar to this (don't blindly copy it, i am writing this directly on github):

ffStrbufRemoveIgnCaseEndS(&name, "Graphics");
ffStrbufTrimRight(&name);

char intelPrefix[] = "AppleIntel";
char applePrefix[] = "Apple";

if(ffStrbufStartsWithIgnCaseS(&name, intelPrefix)
{
    ffStrbufSubstrAfter(&name, sizeof(intelPrefix));
    ffStrbufAppendS(&vendor, "Intel");
}
else if(ffStrbufStartsWithIgnCaseS(&name, applePrefix)
{
    ffStrbufSubstrAfter(&name, sizeof(applePrefix));
    ffStrbufAppendS(&vendor, "Apple");
}

ffStrbufTrimLeft(&name);

[CarterLi]

Updated, now we can correctly detect Intel Iris graphics

As for vendor, I don't think I want to do it before I can verify whether it works for other graphic cards.

[LinusDierheimer]

Thank you.