[main] Unblocking Perl packages, part 3 (final). (#2029)
* Initial commit for 'perl-boolean'.
* Linting.
* Adding license and cgmanifest.json entries.
* Adding signatures.
* Initial commit for more Perl deps.
* Adding source attributions.
* Updating spec licenses.
* Updating cgmanifest.json
* Verifying licenses.
* Exlucing test deps.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Verified spec license and done initial spec clean-up.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Verified spec license and done initial spec clean-up.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Updating source URL for 'libecb'.
* Verified license, initial spec clean-up.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Verified spec license and done initial spec clean-up.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Verified spec license and done initial spec clean-up.
* Linting.
* Adding signatures.
* Initial commit for new perl packages.
* Adding source attributions, spec licenses, and cgmanifest.json entries.
* Verified spec license and done initial spec clean-up.
* Linting.
* Adding signatures.
* Adding signatures.
* Fixing linting error.
* Verifying missed spec license.
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