add a function to compute the minimum of Jacobian (displacement)

[keiyamamo]

This PR adds a function to compute the minimum of Jacobian, which could be used to measure the quality of the mesh.
This can be used to help investigate the reason for divergence.

Ref. Fig.6 in this paper: https://www.ljll.fr/~frey/papers/meshing/Wick%20T.,%20Fluid-structure%20interactions%20using%20different%20mesh%20motion%20techniques.pdf

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 74.07407% with 7 lines in your changes missing coverage. Please review.

Project coverage is 81.36%. Comparing base (8193818) to head (6eb2bcd).

Files with missing lines	Patch %	Lines
src/vasp/automatedPostprocessing/log_plotter.py	63.63%	4 Missing ⚠️
src/vasp/simulations/avf.py	0.00%	2 Missing ⚠️
src/vasp/simulations/simulation_common.py	91.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #200      +/-   ##
==========================================
- Coverage   81.42%   81.36%   -0.06%     
==========================================
  Files          32       32              
  Lines        3859     3886      +27     
==========================================
+ Hits         3142     3162      +20     
- Misses        717      724       +7     

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[keiyamamo]

Hi @johannesring

Could you please review this PR? I think this function would be a nice addition for improving log_plotter function.

[johannesring]

Looks good.