Customizable directional window resize logic

[Agent00Ming]

Describe your PR, what does it fix/add?

Closes #6152, adds a drop-in replacement (and configurable) window resizing logic. Also will fix a bug with pseudotiled windows + resize on border being unreliable (sometimes resizes the node box, sometimes resizes the inner window).

New function: IHyprLayout::getWindowRegion() determines where a point is on an arbitrary rectangle defined as a CBox with an optional CBox for edge size calculation (defaults to 0) and an optional raw boolean for the raw untranslated integer. Returns an integer between 0 and 23 (inclusive) when translated in-function.

Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)

Drop-in compatibility, no behavioural changes unless configured to be. Pseudotiled general:resize_on_border interaction now always resizes the inner window instead of the window node's box.

general:edge_depth float value that

• acts as a % of the window's shortest side divided into two edges when between 0.0 and 1.0 (exclusive)
• acts as a pixel count clamped between 1 and 1/2 of the window's shortest side when above 1.0
• disables the calculation of edges when 0 or under.

general:resize_mouse_bind_pattern integer value that sets the pattern of the window resize direction.

• 0 is the default, the 4 corners that we have now.
• 1 makes the edges of the window single axis resize and the middle of the window is divided into 4 corners.
• 2 is similar to the default with the exception that the edges are single axis resize
• 3 corners do the dual axis resize and a 'cross' shape that connects the edges are single axis resize
• 4 window is divided into 4 triangles for single axis resizes only
• Any invalid value is considered default

Is it ready for merging, or does it need work?

It's presently in a working state for dwindle and for floating windows.

TODO:

• floating windows don't update their reported size and position when resized (bug in main branch)
• general:extend_border_grab_area no longer does anything (bug in main branch) (broken by addd3e7)
• pseudotiled windows [dwindle] have a inconsistent general:resize_on_border interaction (bug in main branch)
• pseudotiled windows [dwindle] don't respect single axis resize
• master layout does not respect single axis resize
• primary + alternate pattern ?
• settle on config variable names
• cleanup
• docs