choose-menu: support paging (close #97)

- choose-menu:
    - reformat menu according to terminal size
    - adjust title with menu details, especially if items are hidden
    - adjust hint row based on terminal size
    - use checkboxes for multi, use radios for single
    - use partial radio when not required
    - add cancel, revert, prior, and toggle actions
    - remap backspace from cancel to prior, to be the opposite of tab's next action
- choose-option:
    - update wording on filter item, to ensure user selects
- is-tty: bash v3 compat
- setup-utils: implement defaults