Dynamic binning for efficiencies

[bundocka]

Reference Issue

What does this pull request implement/fix? Explain your changes.

• Add _dynamic_bin member function to efficiency class that automatically merges bins such that all bins have more than n total events
• Remove high range bin arrays from jetMet_analyzer
• Tidy up binning
• Checked that the efficiencies are the same as before adding this functionality for 10k events, and when setting min events to -1

Any other comments?

An example would be if you require another pull request to be merged before this one. If you do, please reference it.

[kreczko]

The build is failing due to an unrelated issue. Could you please fix it by changing

pandas

to

pandas==0.22.0

in conda_requirements.txt?

[kreczko]

thanks! Is this ready for merging now?

[bundocka]

Yep, thanks