v0.4.0

Main changes

• Additional information provided in output of estim_param function: parameters' values proposed by the estimation method and associated criterion values, model results ... The level of information returned is controlled by a new argument (info_level)
• Exported new functions to plot the evolution of parameters and criterion values in function of iterations/evaluations (see vignette (https://sticsrpacks.github.io/CroptimizR/articles/Parameter_estimation_simple_case.html))
• Fix: management of param_info$sit_list for only one parameter did not work