* [AUTH-9252] Adds support for files in sudoers.d
This commit adds permission checks for files found in 'sudoers.d'.
Previously only the main 'sudoers' file is checked. Fixes#600.
* [AUTH-9252] Check drop-in directory permissions
The test case currently only checks file permissions. This adds
logic to check the drop-in directory permissions as well.
* [AUTH-9252] Check file/folder ownership
This test currently only checks file/directory permissions. This
commit adds checks to ensure sudo configuration files/folders are
owned with UID=0 and GID=0.
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