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/cmake/trailbook-ext-everest/templates/api_index.rst.jinja

@@ -0,0 +1,12 @@
+{%  import 'macros.jinja' as funcs %}
+
+.. toctree::
+    :maxdepth: 1
+    :glob:
+
+{{ funcs.explicit_target('everest_api') }}
+{{ funcs.h1("EVerest API Specification") }}
+
+{% for item in apis %}
+* `{{ item.name }} <{{ item.path }}/index.html>`_
+{% endfor %}