[WIP] Script validate gradient table

[VincentBeaud]

Quick description

PR for this issue: #1074

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Type of change

Check the relevant options.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Provide data, screenshots, command line to test (if relevant)

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Checklist

• My code follows the style guidelines of this project (run autopep8)
• I added relevant citations to scripts, modules and functions docstrings and descriptions
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I moved all functions from the script file (except the argparser and main) to scilpy modules
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[pep8speaks]

Hello @VincentBeaud, Thank you for submitting the Pull Request !

• In the file scilpy/gradients/bvec_bval_tools.py:

Line 333:31: E128 continuation line under-indented for visual indent

• In the file scripts/scil_gradients_validate_sphere.py:

Line 50:1: E305 expected 2 blank lines after class or function definition, found 1

[VincentBeaud]

@karanphil Voici ce que j'ai à date. Un peu brouillon pour l'instant.

[codecov]

Codecov Report

Attention: Patch coverage is 15.21739% with 39 lines in your changes missing coverage. Please review.

Project coverage is 69.36%. Comparing base (5bcfd7f) to head (cb4933e).
Report is 18 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1093      +/-   ##
==========================================
- Coverage   69.45%   69.36%   -0.10%     
==========================================
  Files         447      448       +1     
  Lines       24025    24097      +72     
  Branches     3280     3291      +11     
==========================================
+ Hits        16687    16714      +27     
- Misses       5943     5985      +42     
- Partials     1395     1398       +3     

Components	Coverage Δ
Scripts	70.14% <58.75%> (-0.12%)	⬇️
Library	68.30% <30.43%> (-0.07%)	⬇️

[karanphil]

@karanphil Voici ce que j'ai à date. Un peu brouillon pour l'instant.

Après avoir testé l'avenue de l'énergie, on va y aller avec juste ça! Ça marche bien et c'est déjà pas mal codé dans scilpy. Aussi, il y a des cas problématiques avec l'approche de l'angle. Donc cette PR pourra être fermée. Merci! :)