[contrasting] improve plots. last version of the plot for the v1. improve the size of the label. improve also the process to get the legend for coherence plot

[contrasting] for preliminary_analysis.py from now we use fevd fit method & fit on series with more than 90% of non zero maxima. improve coherence plot

[contrasting] add xlabel, remove 300m from the lower altitude group. add condition that we consider only altitude for which the massif has less than 10% of non zero annual maxima. return period is changed to 100.

[contrasting] improve pointwise_gev_study_visualizer.py with a linear regression against the altitude. modify the _maxima_gev depending on the fit method

[contrasting] add a pre-computed of the max_abs value for the shape parameter & for the various moments

[contrasting] add pointwise_gev_study_visualizer.py and add confidence interval for the gev parameters for is_mev fit method

[contrasting] add temporal covariate argument to the margin model class, so that we could use the global temperature as covariate.

[exceeding] modify plot settings for the paper. put "imap" instead of "map" to avoid computing 2 times the models

[contrasting] add assertion that the max_abs_change is different from np.inf otherwise it makes the computer freeze
IMPORTANT MODIFICATION, THAT MIGHT CHANGE PAPER 1: change unconstrained_estimator_gev_params to unconstrained_estimator_gev_params_last_year