feat: Adding a fault stability analysis workflow

[paloma-martinez]

This PR will add a post-processing workflow to analyze the fault stability and plot various results.

[RomainBaville]

Thanks for the job.
I made some suggestion but I have two additionnal global comment:
There is some caracter in the code that can lead to issues (greek letters, emoticon, arrows). To avoid that, you may change them.
In your code, some warning can be convert to error and the error managment can be updated (raise and not log error, use the CountVerbosityHandler ...)

[RomainBaville]

Thanks for the job.
I made some suggestion but I have two additionnal global comment:
There is some caracter in the code that can lead to issues (greek letters, emoticon, arrows). To avoid that, you may change them.
In your code, some warning can be convert to error and the error managment can be updated (raise and not log error, use the CountVerbosityHandler ...)

[RomainBaville]

It seems good to me. As your PR was already fat it is logical that you did not implement the tests but you may add an issue to implement them in the futur.