Use the known_issues option to check for known issues
Add the known fail_type, for known tests failure
Add link to trac tickets if tickets is defined for a test
Move the command test type to its own file
Add a file_known_issue subroutine

This subroutine can be used to set a command test as a known issue for
some specific files only.
Add known issue: meek binaries are not PIE (#10935)