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/lib/everest/io/docs/CMakeLists.txt

@@ -0,0 +1,19 @@
+find_package(Doxygen
+    REQUIRED dot
+    OPTIONAL_COMPONENTS mscgen dia)
+
+if (DOXYGEN_FOUND)
+  set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
+  set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
+
+  configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
+  message("Doxygen build started")
+
+  add_custom_target(libeverest_io_doc_doxygen
+    COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    COMMENT "Generating API documentation with Doxygen"
+    VERBATIM )
+else (DOXYGEN_FOUND)
+  message("Doxygen need to be installed to generate the doxygen documentation")
+endif (DOXYGEN_FOUND)