Add conf.py for sphinx

(cherry picked from commit b9216015)

docs/sphinx/conf.py

+"""
+Configuration file for the Sphinx documentation builder.
+
+For the full list of built-in configuration values, see the documentation:
+https://www.sphinx-doc.org/en/master/usage/configuration.html
+"""
+
+import os
+import datetime
+
+currentDateTime = datetime.datetime.now()
+date = currentDateTime.date()
+
+# -- Project information -----------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
+
+project = 'Sassena'
+version = os.environ.get('CMAKE_PROJECT_VERSION') or ''
+author = 'ABCD'
+project_copyright = '{}, Sassena Authors'.format(date.year)
+
+# -- General configuration ---------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
+
+extensions = ['sphinx_rtd_theme']
+
+root_doc = 'index'
+# exclude_patterns = ['sphinx', 'doxybook']
+suppress_warnings = ['misc.highlighting_failure']
+
+html_theme = 'sphinx_rtd_theme'
+