Enhancements & Fixes

[YannickDieter]

Bugfixes:

• actually histogram cluster_shape for cluster shape hist
• updating of progressbar fixed
• iteration variable in noisy pixel masking fixed

Enhancements:

• Improve plot_cluster_hists(): support for more files
• Track angle plots added to result analysis
• Additional efficiency region plot
• Optional naming of efficiency regions

[YannickDieter]

@laborleben Do you have any suggestions for improvements?