expose width/height factor

[JoseConseco]

It would be great to have parameter for width/height ratio like so:
new_layout = "splitv" if con.rect.height > **fac***con.rect.width else "splith"
With this set to, for example, 1.5 - auto-tile we would have wider windows, before they would be split in top/down. When coding, I prefer my windows to be slightly wider than tall.

[nwg-piotr]

On my full HD screens it looks a bit useless. Does it make sense on 4K or something?

[JoseConseco]

Ok, my bad 1.5 is not useful. It was supposed to be inverse.
Splitting with fac = 1 :

Factor 0.62 (inverse of golden ratio)

The advantage IMO is that when having long lines, it is preferred to have bias toward top/bottom split. If window is wide enough, it would split left/right.

[nwg-piotr]

Feel free to open a PR.

I use vertical 1200 x 1920 output for coding. If I happen to need something more than just IDE on it, it looks not bad with depth limit set to 3.