Add autosectionlabel_full_reference configuration variable

[andrewjmaguire]

Subject: Enable the autosectionlabel extension to create more unique references

Feature or Bugfix

• Feature

Purpose

• In a large document with many same-named sub-sections, the autosectionlabel extension will not create useful references that can be used to reference these non-uniquely named sub-sections. This pull-request includes an option that makes the usable references that include the section name hierarchy in the reference string.

Detail

• Add autosectionlabel_full_reference configuration variable

Relates

• https://github.com/sphinx-doc/sphinx/issues/13075