contrib/bsddialog: Import version 0.4

Improvements and changes to integrate bsddialog(1) with scripts in BASE.
Overview:

• New options. --and-widget, --keep-tite, --calendar.
• Change output format. Menus and --print-maxsize.
• Redefine sizing. Fixed rows, cols and menurows became at the most.
• Add DIAGNOSTICS. Error messages for bad arguments and options.
• Add keys. Space for --menu, fast keys for --msgbox and --yesno.
• Text. Change default text modification, add --cr-wrap.

See /usr/src/contrib/bsddialog/CHANGELOG '2022-09-24 Version 0.4'
for more detailed information.