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/yaml/include/utils/yaml_loader.hpp

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#ifndef UTILS_YAML_LOADER_HPP
+#define UTILS_YAML_LOADER_HPP
+
+#include <filesystem>
+
+#include <nlohmann/json.hpp>
+
+namespace Everest {
+
+/// \brief Read the YAML file at \p path and returns its content as JSON
+nlohmann::ordered_json load_yaml(const std::filesystem::path& path);
+
+/// \brief Saves the JSON \p data to a YAML file at \p path
+void save_yaml(const nlohmann::ordered_json& data, const std::filesystem::path& path);
+
+} // namespace Everest
+
+#endif // UTILS_YAML_LOADER_HPP