[EXTREME ESTIMATOR] Add MLE extreme estimator. refactor test gev temporal extremes. move confidence interval results

[EUROCODE GRAPH] update burn in percentage to 0.5 (update test). delete test region eurocode. update eurocode graph.

[EUROCODE DATA] improve display for the eurocode return level graphs. rename linear margin temporal models.

[TEMPORAL LINEAR MARGIN][BAYESIAN ESTIMATION] modify fevd_fixed prior to ensure that prior is always applied on the shape parameter. add multiprocessing for eurocode return level uncertainty. add option to specify a last year for eurocode uncertainty computation.

[TEMPORAL LINEAR MARGIN][BAYESIAN ESTIMATION] add fevdPriorCustom as prior for the fit. update test accordingly. add non stationary version of fevD both in R and also in python. add test for that in python. modify upper and bottom quantile for eurocode

[EUROCODE][DRAWING PER REGION] modify test region eurocode. add test_ gev temporal bayesian. add stationary version for the Bayesian. refactor utils at the root, to root_uils to avoid weird import issues.

[EXTREME ESTIMATOR] refactor margin_fits folder. extreme estimator folder. and extreme_models folder

[EXTREME ESTIMATOR][MARGIN MODEL] refactor linear margin model folder organization. refactor names in univariate trend analysis

[EXTREME ESTIMATOR][GEV MARGIN FIT][BAYESIAN] add fevd.R to use fedv package in the Bayesian mode. Also, fix fevd method, by creating my own method "myfevd" that avoid code crash when using mode use.phi=FALSE

[TREND ANALYSIS] add verbose argument when creating hypercube visualizer. add shape analysis from the MLE estimator, and the shapes are indeed between -0.4 and 0.4

[TREND ANALYSIS] add boolean that accept scale 0 parameter that enables to compute easily some mean difference where scale1 is zero

[TREND ANALYSIS] add likely ratio test between non-stationary models. To produce maps to show that the model with both linearities is significantly better than the simpler ones.

[POSTER EVAN] improve visualization of the starting years for the poster. some refactorign for the Alps graph and cmap, from now on, we will only remove the last 20 starting years

[DATA EXTRACTION] add all_days & all_daily_series property, that was useful to extract some data of snow depth for taline

[PAPER1][STARTING YEAR] write main for location & scale with common starting year spatially & altitude

[NON STATIONARY] fix constant gev params. also some refactoring for the regions, the colors, and functions.

[EUROCODE DATA] add eurocode regions, and mapping between massifs and departement, and mapping between departement and eurocode region.