Add Temperature Scaling option to ClassificationCalibration algorithm.

[pronics2004]

Add Temperature Scaling option to ClassificationCalibration algorithm

Relevant Paper: http://proceedings.mlr.press/v70/guo17a.html

[adityajain93]

I can pick this up. If you can assign this to me, that would be perfect.

[pronics2004]

I can pick this up. If you can assign this to me, that would be perfect.

Thanks assigned it to you.