basic test for the scanner

MANIFEST.in

pytest.ini

requirements-test.txt

swh/scanner/tests/conftest.py

swh/scanner/tests/data.py

swh/scanner/tests/data/sample-folder-result.json

...ner/tests/data/sample-folder/bar/barfoo/another-quote.org

...canner/tests/data/sample-folder/bar/barfoo2/some-file.txt

swh/scanner/tests/data/sample-folder/foo/barfoo

swh/scanner/tests/data/sample-folder/foo/quotes.md

swh/scanner/tests/data/sample-folder/foo/rel-link-to-barfoo

swh/scanner/tests/data/sample-folder/link-to-another-quote

swh/scanner/tests/data/sample-folder/link-to-foo

swh/scanner/tests/data/sample-folder/some-binary

swh/scanner/tests/flask_api.py

swh/scanner/tests/test_model.py

swh/scanner/tests/test_scanner.py