Window behavior review

[ColleagueRiley]

reviews windowing behavior

• separate maximize and fullscreen functions

• maximize -> use the API to make the window maximized ("windowed" window at its max size)
• fullscreen -> use API to make the window fullscreen ("unwindowed" top window that covers the full screen)

• add RGFW_window_setAspectRatio -> uses API calls to force an aspect ratio when the window is resized
• add RGFW_window_scaleToMonitor AND RGFW_monitor_scale (scale THE MONITOR to a certain size) (i.e. forcing a 720p resolution)
• add monitor/monitor example to show forced scaling.

[ColleagueRiley]

Currently, this has only been implemented for X11 (tested with Arch Linux Xfce)

This will be pulled as soon as MacOS and Windows support gets implemented.