WIP add normalize op

[hinerm]

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[hinerm]

I started this branch to work on scijava/scijava#197

However, this implementation of normalization is not really what I wanted. In my sample data, the 16-bit histogram looks like this:

Really what I want is to normalize in this actual min-max range. Normalizing in the input (16-bit) range to the output (8-bit range results in all of these values being mapped essentially to 0-4ish which is.. not great.

I don't think using a single type-based op and lifting will be appropriate because we need to know the range. We would need a new Op that operates on images and has a dependency on min/max ops and normalize ops.

Normalize would also need to be updated to add signatures that accept input range parameters

[hinerm]

Found the image.normalize ops and they appear to work for my use case so I am going to just use those instead