Function tryTarWithGzip (carvel-vendir/pkg/vendir/fetch/archive.go) loses link/symlink/mode/UID/GID/etc. in extracting .tar and .tar.gz files

[yeahdongcn]

What steps did you take:
[A clear and concise description steps that can be used to reproduce the problem.]
Fetch a tar file through HTTP through DirectoryContents config, everything works as expected except the extracted file contents are different from tar xvf <<path-to-tar-file>>.

What happened:
[A small description of the issue]
.tar or .tar.gz file are extracted but the content is different than tar xvf <<path-to-tar-file>>.

What did you expect:
[A description of what was expected]
.tar or .tar.gz file are extracted and the content is the same as tar xvf <<path-to-tar-file>>.

Anything else you would like to add:
[Additional information that will assist in solving the issue.]

Environment:

• vendir version (execute vendir --version):
  Head of develop branch.
• OS (e.g. from /etc/os-release):

❯ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.4 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.4 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

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[yeahdongcn]

Just checked the implementation, tryTarWithGzip only handles tar.TypeReg.

[cppforlife]

@yeahdongcn yeah this was meant to be an implementation that covers majority of use cases and remains simplest. i think we would be open to a PR to enhance it but i would probably ask for an opt-in to enable this feature (as some kind of a configuration option on http section)