Limit computer vision suggestions for observations of humans

[cmcheatle]

@danaleeling

I have no idea how hard the coding to do this would be, but when the computer vision lists Homo sapiens as the first possibility, top of the rank order list, no other possibilities should be offered by the computer vision

https://forum.inaturalist.org/t/limit-computer-vision-suggestions-for-observations-of-humans/2067