Issue 1781 utilization

[valentinsulzer]

Description

• Remove the "user" option for particle shape. Particle shape is now determined by geometry
• Add "utilisation" submodels

Fixes #1781

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ flake8
• All tests pass: $ python run-tests.py --unit
• The documentation builds: $ cd docs and then $ make clean; make html

You can run all three at once, using $ python run-tests.py --quick.

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

Merging #1821 (2cbd04f) into develop (051896e) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##           develop    #1821    +/-   ##
=========================================
  Coverage    99.25%   99.26%            
=========================================
  Files          340      345     +5     
  Lines        18773    18900   +127     
=========================================
+ Hits         18634    18761   +127     
  Misses         139      139            

Impacted Files	Coverage Δ
.../submodels/active_material/base_active_material.py	100.00% <ø> (ø)
...ybamm/models/submodels/interface/sei/sei_growth.py	100.00% <ø> (ø)
pybamm/__init__.py	94.82% <100.00%> (+0.04%)	⬆️
...m/models/full_battery_models/base_battery_model.py	99.73% <100.00%> (+0.01%)	⬆️
...ybamm/models/full_battery_models/lead_acid/full.py	100.00% <100.00%> (ø)
...dels/full_battery_models/lead_acid/higher_order.py	98.13% <100.00%> (+0.01%)	⬆️
...ybamm/models/full_battery_models/lead_acid/loqs.py	100.00% <100.00%> (ø)
...ttery_models/lithium_ion/base_lithium_ion_model.py	100.00% <100.00%> (ø)
...bamm/models/full_battery_models/lithium_ion/dfn.py	100.00% <100.00%> (ø)
...bamm/models/full_battery_models/lithium_ion/spm.py	100.00% <100.00%> (ø)
... and 14 more

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[brosaplanella]

Looks good, just some small comments.

[brosaplanella]

Should we set it back to INFO?

[brosaplanella]

Should we revert it?

[brosaplanella]

Hasn't the keyword argument been deprecated?