plot_conservation_level: Conservation Levels Distribution Plot
Description
This function plots conservation levels distribution of k-mer positions, which consists of
completely conserved (black) (index incidence = 100%), highly conserved (blue)
(90% <= index incidence < 100%), mixed variable (green) (20% < index incidence <= 90%),
highly diverse (purple) (10% < index incidence <= 20%) and
extremely diverse (pink) (index incidence <= 10%).