Iterative binning for best binning

do_iterative_binning option now available!

• Iterative binning cycles between MaxBin and CheckM - MaxBin obtains the bins, CheckM checks their quality
• Iterative binning cycles by many probability thresholds to determine the value for the best binning

New option for differential expression - minimum_fold_change!

• Determine padj for up or down expression, instead of just 0 difference