Add CTM support (needed for Asahi Linux to have night light working)

[sfiedler0]

Description

I already suggested the CTM in hyprwm/aquamarine#89, and after that one is done it would be really nice to have it here.

[MahouShoujoMivutilde]

Not saying it should or shouldn't be supported, but if you want night light by itself as a feature, regardless of the implementation, hyprland supports shaders, and it's what I've been using for a long time before nvidia implemented GAMMA_LUT (which is needed for gammastep).

With hyprshade you can even make it use appropriate shader depending on the time of day. They don't seem to use it, but there is also astral which you can use to calculate sunsets and sunrises for a given place and date.

[sfiedler0]

With hyprshade you can even make it use appropriate shader depending on the time of day.

Thanks, didn't know about that one. I'll use it until CTM works.