Include resizepoint patch by default

[VehementHam]

The resizepoint patch changes the floating window resizing mechanics. It makes it so that the window can be resized from any corner, and it does not warp the mouse. This is what most other window managers do, and it is much cleaner.

https://github.com/bakkeby/patches/blob/master/dwm/dwm-resizepoint-6.5.diff