Collected and added advisories from zerodayinitiative

[Dedsec0098]

Fix #1471

Changes made :

1. Added ZDI importer to import advisories (fetching, parsing, importing)

2. Added test file for the importer

3. Added Test data files

@pombredanne I have added the pipeline to import the advisories and If you have any suggestions please let me know I will make the changes required.

[Dedsec0098]

@pombredanne I have already added pipeline_id = "zdi_importer" but still I am getting the error when I test the changes locally.

______________________________________ PipelineTests.test_no_none_pipeline_ids ______________________________________

self = <vulnerabilities.tests.pipelines.test_pipeline_id.PipelineTests testMethod=test_no_none_pipeline_ids>

    def test_no_none_pipeline_ids(self):
        none_pipeline_ids = [cls for cls, pid in self.pipeline_dict.items() if pid == None]
    
        if none_pipeline_ids:
            error_messages = [f"{cls.__name__} has None pipeline_id." for cls in none_pipeline_ids]
            error_message = "`pipeline_id` should not be None:\n" + "\n".join(error_messages)
>           assert False, error_message
E           AssertionError: `pipeline_id` should not be None:
E             VulnerableCodeBaseImporterPipeline has None pipeline_id.
E           assert False

vulnerabilities/tests/pipelines/test_pipeline_id.py:61: AssertionError

Can you please suggest what should I do in this case.

[kunalsz]

@Dedsec0098 you didn't add the license url for the pipeline