jp (common): new ansi_ljust, ansi_rjust and ansi_center command + table: - ansi_ljust, ansi_rjust and ansi_center are equivalent to string.ljust, rjust and center, but handle strings with ANSI escape codes - new Table class to handle tabular data and display them with ASCII borders/separations. - Table is quite flexible, filters can be applied to data, header can be shown or not, columns/headers can be left/right aligned. - table can be displayed without decoration to align text data, using display_blank helping method