fixed usage for only one scenario year -> removed drop() when reading in files and adjusted subsequent apply() calls

fixed ecorisk_wrapper to work with timeseries again; added ecorisk_combine_hist_and_scen_data function; improved biocol_plot_ts function

now the full files_list will be checked, while you can also add other output names via replace_input_file_names

added function argument replace_input_file_names to handle different file names without the need to change the metric_files.yml file

varnames are not needed anymore - all handled through metrics_file.yml + changed lat/lon handling, will now be saved in the object + some minor changes to plotting functions