stduuid: fix cmake version

[OlivierLDff]

stduuid reported the wrong version to cmake, causing
find_package(stduuid 1.2.3) to fail (but find_package(stduuid 1.0) was working which is NOT expected).
Patch is from this PR.

This will need to be updated if stduuid is getting maintained again one day.

$ cat /nix/store/srxjm722bl6n012q0s2xx4w7scwbrv7j-stduuid-1.2.3/lib/cmake/stduuid/stduuid-config-version.cmake
# This is a basic version file for the Config-mode of find_package().
# It is used by write_basic_package_version_file() as input file for configure_file()
# to create a version-file which can be installed along a config.cmake file.
#
# The created file sets PACKAGE_VERSION_EXACT if the current version string and
# the requested version string are exactly the same and it sets
# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version.
# The variable CVF_VERSION must be set before calling configure_file().

set(PACKAGE_VERSION "1.2.3")

Before it was set(PACKAGE_VERSION "1.0")

[AndersonTorres]

Migrate this expression to by-name hierarchy:

1. Move this default.nix file to pkgs/by-name/st/stduuid/package.nix;
2. Remove the line stduuid = callPackage ../development/libraries/stduuid { }; from pkgs/top-level/all-packages.nix.
3. Make a new commit with the two changes above (no need for a new PR).

[AndersonTorres]

LGTM

[OlivierLDff]

Migration to by-name done. Thanks for the review and the time spend guided a newcomer.