feat(check): add check methods

[pedrooot]

Description

This PR add multiple methods to CheckMetadata class:

• list
• get
• list_by_severity
• list_by_category
• list_by_service
• list_by_compliance_framework

[!NOTE] Some methods have been removed since they won't be needed

Checklist

• Are there new checks included in this PR? Yes / No
  • If so, do we need to update permissions for the provider? Please review this carefully.
• [ ] Review if the code is being covered by tests.
• [ ] Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
• [ ] Review if backport is needed.

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.