MLEstimateComponentBasedNormalisation refactor

[robbietuk]

Changes in this pull request

WIP

Refactor of ML_estimate_component_based_normalisation.

• Created a class.
• Simplified the system logic
• Add the ability option to save the data or not

Remaining tasks

• [x] Add methods to get_efficiencies(), get_norm_geo_data() and get_norm_block_data()
• [x] Add methods to get and set the boolean values of do_geo, do_block, do_symmetry_per_block, do_KL, do_display, do_save_to_file
• [x] Improve documentation defining the efficiencies, norm_geo_data, norm_block_data variables (even after all this work I am still slightly confused).
• [x] Add unit tests

Testing performed

Added a new unit test for basic functionality.

Related issues

Fixes #1498

Checklist before requesting a review

• [] I have performed a self-review of my code
• [] I have added docstrings/doxygen in line with the guidance in the developer guide
• [] I have implemented unit tests that cover any new or modified functionality (if applicable)
• [] The code builds and runs on my machine
• [] documentation/release_XXX.md has been updated with any functionality change (if applicable)