COMP: Update doxylink for recent Sphinx

From: https://github.com/sphinx-contrib/doxylink.git
Commit: 58c171bb5077f615dc36fc55f470a462e56da891

With fixes to the remove the relative __version__ import.

Author: thewtex

Utilities/SphinxExtensions/sphinxcontrib/__init__.py

@@ -11,4 +11,3 @@
 """
 
 __import__('pkg_resources').declare_namespace(__name__)
-

Utilities/SphinxExtensions/sphinxcontrib/doxylink/__init__.py

@@ -1,2 +1,6 @@
-from doxylink import *
+from .doxylink import __version__
 
+def setup(app):
+    from .doxylink import setup_doxylink_roles
+    app.add_config_value('doxylink', {}, 'env')
+    app.connect('builder-inited', setup_doxylink_roles)