Reversed coordinates with GLFW on macOS

[Adrian Sieber]

I switched from GLUT to GLFW and suddenly the coordinates were reversed on macOS. On Linux the coordinates were still the same. Is this a bug, or am I missing something?

This is the code I'll temporarily use to work around it: https://github.com/feramhq/Perspec/blob/012b9b1fc7f5808fd44f138c9ff29fedd65c667f/source/Lib.hs#L376