[Request] Window spawn origin

[ashtrath]

This probably kinda dumb request, but i think having ability to customize where window get spawned is really cool, this will allow window to get spawned in center, top right, bottom right, bottom left. command can be wormc window_origin {center, top_left, top_right, bottom_left, bottom_right} or something similar.

[codic12]

Not a dumb request at all, and pretty easy to do. Will add it soon, thanks!