6. Miscellaneous

Miscellaneous functions that may simplify the coding.

misc.derive_separator(file_path)	Derive separator of the csv file.
misc.grep_pattern(strings, pattern)	Extract array of strings that contain the pattern.
misc.random_colors([n_cols])	Produce an array of random colors.
misc.rgb_to_hex(rgb_col)	Convert RGB color to hexadecimal code.