Add sphinx documentation for directtools Python module. Re #21675

docs/source/techniques/directtools.rst

+.. _directtools:
+
+======================
+ :mod:`directtools`
+======================
+
+:literal:`directtools` is a Python module for quickly plotting standardized :math:`S(Q,E)` color fill plots as well as line profiles (cuts) in constant :math:`Q` and :math:`E`. The module also provides a few utility functions for inspecting the :math:`S(Q,E)` workspace.
+
+Reference
+=========
+
+.. autoclass:: directtools.SampleLogs
+   :members: __init__
+
+.. automodule:: directtools
+   :members: nanminmax, plotprofiles, plotconstE, plotconstQ, plotSofQW, subplots,
+             validQ, wsreport
+
+.. categories:: Techniques