Generalize Noise Addition to a Randomization Op

It would be nice to have a (set of) Ops that are able to randomize an image, with a `Computers.Arity2, MersenneTwisterFast, RAI>` (maybe additionally some Op with a `Random` instead of a `MersenneTwisterFast`). Such an Op would share similarity with the current noise adding Ops, so it would be best to generalize the logic present in the noise adding Ops to allow for extended functionality.

What would be especially powerful would be to allow the user to define a probability density function/probability mass function to provide to the Op. It might be worth investigating whether a `Histogram1d` could be suitable for defining pmfs, or whether there is a structure better suited for the task.