- Fix get_version_number.sh to show version without suffix gz.asc

- Add ncurses patch 20230418 (boo#1210485, (boo#1210434)
+ improve checks for limits on privileged execution:
+ modify _nc_syserr_abort() to use _nc_env_access(), rather than
only checking root uid.
+ use getauxval() when available, to improve setuid/setgid checks.
+ modify test packages to disable root access/environ options.
+ modify tgoto() to accept no-parameter capabilities, for joe editor
(OpenSUSE #1210485, Gentoo #904263).

- Add signatures of the patches as well in patch tar ball

- Add ncurses patch 20230415 (boo#1210485)
+ configure script fixes:
+ fix copy/paste error in configure option --disable-root-access
(report/patch by Sven Joachim).
+ modify CF_XOPEN_SOURCE macro's amend default case to avoid
undefining _XOPEN_SOURCE if _POSIX_C_SOURCE is defined.
+ modify test_tparm to account for extended capabilities.
+ add checks in tparm() and tiparm() for misuse of numeric parameters,
overlooked in 20230408.
+ fix errata in clear.1 and curs_terminfo.3x

- Add ncurses patch 20230408 (boo#1210434)