Copy: always dereference symbolic links in SOURCE

Fixes:
20200311-0001 Normal update operations by root can corrupt/crash running processes through modifying libraries

wide.

copy_resolv_conf: added support for symlinked /etc/localtime (see #32346).

copy_resolv_conf: forcibly remove stale optional config files.

copy_resolv_conf: treat /etc/localtime as an optional config file.

added a hook for openresolv

functions (copy_resolv_lib): Copy required NSS libraries only.
%post: Force full update.

updated to play well with nss_mdns

Reduced macro abuse in specfile.

chroot.d/functions (copy_resolv_conf): added multilib support.
Updated FSF postal address.

chroot.d/functions (CopyLibs): enhanced new ldd(1) output handling.

chroot.d/functions (is_yes): new function.
chroot.d/functions:
-no-force/--no-verbose;
dependent;
dependent.

chroot.d/functions (CopyLibs):
alt3.
chroot.d/functions (copy_resolv_conf):
update_chrooted: added --list option.

update_chrooted: added more options and document them.
chroot.d/functions:
Added /etc/chroot.d/.provides.sh file.
Added update_chrooted(8) manpage.