Helper function to collect a table from a sqlite date base according to the information given in one line of the table_overview

collect_sim_i(sim_i, save_list)

Arguments

sim_i

One line of the overview_table providing with the columns tbl_name (the name of a table in one of the sqlite db's), var (name of the variable), run_label, run_num (the numeric representation of a run), and the con_number (providing the number of the data base connection that stores the results for this variable and run)