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/EVerest-main/docs/source/how-to-guides/documenting-everest/index.rst

@@ -0,0 +1,38 @@
+.. _documenting_everest:
+
+###################
+Documenting EVerest
+###################
+
+Documentation helps beginners to start with EVerest and advanced users to
+be effective by quickly having required information had hand. Find out how
+to help writing and keeping documentation up to date.
+
+.. grid:: 1 2 2 3
+   :gutter: 2
+
+   .. grid-item-card:: Write Documentation
+      :link: extending-everest-documentation
+      :link-type: doc
+
+      How to write documentation for EVerest. A detailed description.
+
+   .. grid-item-card:: Documenting Quickstart
+      :link: change-documentation-quickstart
+      :link-type: doc
+
+      Short description with the most important steps required to change the EVerest documentation.
+
+   .. grid-item-card:: Sphinx Style Guide
+      :link: sphinx-style-guide
+      :link-type: doc
+
+      How to achieve the desired formatting with Sphinx.
+
+.. toctree::
+    :hidden:
+    :maxdepth: 1
+
+    extending-everest-documentation
+    change-documentation-quickstart
+    sphinx-style-guide