Filter on the aspect ratio of the object H/W

Add a new filter option (Aspect Ratio) into detection filter conditionals. Filters on the Height / Width of the detected object. An input >1 covers objects with a Height > Width and <1 covers objects that have a Height < Width. I wrote it to help filter false positives on person objects. Real people tend to be much taller than their width so an input of 1.5 helps to remove the false triggers.