Add wide color & HDR support

[ProgramMax]

Is your feature request related to a problem? Please describe.
By default, sRGB is the likely assumed color space. But not all content is sRGB.
If someone intends to use maxGUI to display a wide color image or an HDR movie, maxGUI needs to expose color space information & control.

Describe the solution you'd like
maxGUI should expose connected monitors and their supported gamut. This allows programmers to apply tone mapping and the such as needed.

Describe alternatives you've considered
We could simply stick to sRGB. But that would constrain users.
Many GUI apps don't touch wide color & HDR anyway, so this constraint might not matter much. But there would still be value to users knowing they could expand in the future if they wanted. IE the limiting factor should be the user's priorities, not the library.

Additional context
On MacOS, I believe the output color space is fixed. This likely impacts how things should be designed.