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/reference/index.rst

@@ -0,0 +1,14 @@
+.. _everest_reference:
+
+#########
+Reference
+#########
+
+.. toctree::
+    :maxdepth: 1
+
+    modules/index.rst
+    interfaces_index.rst
+    types_index.rst
+    api/autogenerated_api_index
+    snapshot.rst