Rounding mutation feature (.net)

[aralmo]

The idea would be to mutate used rounding type if math.round is used in a method.
I've seen pretty nasty errors due to the fact that it uses bankers rounding by default, wich may be counter intuitive from a class called Math.

[richardwerkman]

We have an open issue for this, you could join the discussion there and maybe build the mutator if you feel like it? See #1194