Posits (Unum Type 3) as new data type

I discovered posits aka Unum Type 3, some days ago and they seem to not have much discussions yet. I think they are a great fit for move as a basic data type and we should support this innovative data type. A good video about posits on youtube Posits – Beating Floating Point at its Own Game - wzAYGgzUtNA

They have some advantages compared to floats:

  • Fewer places with underfloats
  • Ability to display numbers humans care about, like 2, 1/3, …
  • Higher precision around 1

I think for games and AI, this datatype is very interesting.

I suggest adding p8, p16, p32