7. Miscellaneous

Miscellaneous functions that simplify the code.

misc.derive_separator(file_path)	Derive separator of the csv file.
misc.grep_pattern(strings, pattern)	Extract list of strings that contain the pattern.
misc.random_colors([n_cols])	Produce a list of random colors.
misc.rgb_to_hex(rgb_col)	Convert RGB color to hexadecimal code.
misc.display_progress(k, n[, freq])	Display progress of an iterated process, e.g. a loop.