contrib/bsddialog: Import version 1.0.5

Version for change and feature requests.

* Improve documentation for --alternate-screen and --normal-screen.
  Request: https://bugs.freebsd.org/285459. (This PR is not about
  bsddialog itself but is used as an example for an official FreeBSD
  documentation request.)

* Reduce the number of screen refreshes to improve performance over a
  115200 UART connection.
  Request: https://gitlab.com/alfix/bsddialog/-/issues/8.

* Change textbox buttons to return distinct values (previously always
  returned OK).
  Request: https://reviews.freebsd.org/D48668; already committed in
  contrib/ 96a241a35905078bdc5d20bf25943cdb67758dea

* Change forms navigation key behavior for ENTER and TAB.
  Request: https://bugs.freebsd.org/287592.

Refer to /usr/src/contrib/bsddialog/CHANGELOG to know more.

PR:		287592
Reported by:	adrian
Sponsored by:	The FreeBSD Foundation
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