Draws a ranked bar chart for any result of mx_tf_activity,
mx_cell_composition, mx_coexpression_modules
or mx_drug_connectivity. Bars show the score (TF activity,
pooled Hedges' g or reversal score); faded bars are not significant.
Examples
if (FALSE) { # \dontrun{
mx_downstream_plot(mx_tf_activity(meta_result, collectri))
} # }
