v2.5.9 ASI and Vuln docs and bug fixes, plus whois history

v2.5.9

Enhancements

• Significant improvements to the Attack Surface Intelligence (ASI) documentation. Added
  class references for ASI, CTI and vulnerability intelligence to ensure the docs and links
  generated properly. Introduced a new Sphinx module to help generate inline table-of-contents
  for complex classes. Corrected typos in docstrings and ensured consistent type references
  when methods returned RecordList-type objects.
• Implemented new config files for readthedocs to align with current documentation practices.
• New whois_history property of Hostname and IPAddress entities gives direct access
  to historical Whois (ownership) records. Includes more consistent implementation of
  RecordList functionality and better pandas dataframe support for both historical Whois and
  field-level Whois searches.
• New impacted_attack_surfaces property of vulnerability articles (VulnArticle) filters
  the list of third-party vendors to only those with at least one observation. The Illuminate
  API returns all attack surfaces associated with an API key regardless of whether they are
  impacted; the complete list is still available in the attack_surfaces property. Also updated
  the info view of the Pandas dataframe on a vulnerability article so the impacts column
  shows the count of impacted attack surfaces.

Bug Fixes

• Correctly sum insight and observation counts when accessing Attack Surface Insights
  (ASIs) across multiple severity levels. Previously the active_insight_count,
  total_insight_count, and total_observations properties of the all_active_insights
  record list were only counting high-priority insights.
• Fixed issue that caused an exception when trying to generate a dictionary view of an
  AttackSurfaceComponent (detection).
• Removed reference to non-existant field in VulnArticle that was causing an exception when
  rendering a vulnerability article as a dictionary with the as_dict property.
• Handle vuln articles with no impacted assets without raising an exception.