0.0.99.4

Overview of changes

• Add an --authfile option to 'create'
• Add a --preserve-fds option to 'run'
• Add a test that runs codespell
• Add fedora-toolbox image definition for Fedoras 37, 38 and 39
• Add several new system tests and make the existing ones stricter
• Avoid unexpected DNF behaviour with reinstalling or swapping RPMs when
  building the fedora-toolbox images
• Be more strict when looking for a C compiler for building
• Call 'systemd-tmpfiles --create' when installing
• Check if subordinate ID ranges are present for also the UID, and not just
  the username
• Document the toolbox.conf configuration file
• Don't create a nested pseudo-terminal device during 'run' if the standard
  input and output streams are not connected to a terminal
• Don't leak ID and VARIANT_ID into the shell
• Don't unmarshal the 'podman images' JSON twice
• Enable OpenGL and Vulkan for hardware with free drivers on the
  fedora-toolbox images
• Enable running non-nested display servers from a virtual terminal
• Enforce all the default 'go vet' checks on all Go sources
• Enforce gofmt on all Go sources
• Ensure that the 'distro' option is valid, instead of silently falling back
  to Fedora
• Ensure that 'run' has the same container environment as 'enter'
• Ensure that the fedora-toolbox images has all the locales known to glibc,
  and not just C, POSIX and C.UTF-8
• Exit 'run' with exit code of invoked command
• Fix the titles of the manuals
• Give precedence to /etc/os-release over /usr/lib/os-release in
  /etc/profile.d/toolbox.sh
• Hide the Fedora-specific welcome banner on non-Fedora containers
• Improve the error messages if the 'distro' and 'release' options are invalid
• Improve the error messages for mutually exclusive options
• Improve the default image used for RHEL Toolbx containers to offer an
  interactive command line experience similar to that on RHEL Workstation
• Make /etc/profile.d/toolbox.sh compatible with Z shell again
• Make sd_booted(3) work inside Toolbx containers
• Preserve the host's XDG_SESSION_CLASS environment variable inside Toolbx
  containers
• Replace github.com/mattn/go-isatty and the deprecated
  golang.org/x/crypto/ssh/terminal API with golang.org/x/term
• Replace jwhois with whois in the fedora-toolbox images for Fedora >= 37
• Replace the hand-written shell completion for Bash with ones generated by
  Cobra that cover fish and Z shell too
• Restore more documentation removed from the base Fedora images
• Run unit tests with -Dmigration_path_for_coreos_toolbox on CentOS Stream 9 as
  part of the CI
• Silence warning when running the system tests with Bats >= 1.7.0
• Support RHEL 9 Toolbx containers
• Support subordinate user and group ID ranges on enterprise set-ups
• Unbreak sorting and clearly identify copied images in 'list'
• Update fallback release to 37 for non-fedora hosts
• Update the Go dependencies with 'go get -u'
• Various updates to the documentation and manuals
• Work around Cobra 1.1.2's handling of usage functions