Add extracted tools: CitrineOS, OpenOCPP, ShapeShifter

- CitrineOS core extracted (CSMS OCPP 2.0.1)
- OpenOCPP extracted (firmware OCPP 1.6J/2.0.1)
- ShapeShifter library installed (pip install -e)
- ShapeShifter specification extracted
- EVerest extracted

TODO updated with progress

tools/shapeshifter-library-python-main/docs/source/index.rst

@@ -0,0 +1,27 @@
+.. shapeshifter-uftp documentation master file, created by
+   sphinx-quickstart on Wed May 31 15:17:01 2023.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to Shapeshifter UFTP's documentation!
+=============================================
+
+This library allows you to quickly build applications that talk to Distribution System Operators, Aggregators and Common Reference Operators as defined in the UFTP Specification.
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+   readme
+   concepts
+   examples/index
+   cli
+   api/index
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`