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/framework/include/utils/filesystem.hpp

@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#ifndef UTILS_FILESYSTEM_HPP
+#define UTILS_FILESYSTEM_HPP
+
+#include <nlohmann/json.hpp>
+
+#include <utils/types.hpp>
+
+namespace Everest {
+namespace fs = std::filesystem;
+
+/// \brief Check if the provided \p path is a directory
+/// \returns The canonical version of the provided path
+/// \throws BootException if the path doesn't exist or isn't a directory
+fs::path assert_dir(const std::string& path, const std::string& path_alias = "The");
+
+/// \brief Check if the provided \p path is a file
+/// \returns The canonical version of the provided path
+/// \throws BootException if the path doesn't exist or isn't a regular file
+fs::path assert_file(const std::string& path, const std::string& file_alias = "The");
+
+/// \returns true if the file at the provided \p path has an extensions \p ext
+bool has_extension(const std::string& path, const std::string& ext);
+
+/// \returns a path that has been prefixed by \p prefix from the provided json \p value
+std::string get_prefixed_path_from_json(const nlohmann::json& value, const fs::path& prefix);
+} // namespace Everest
+
+#endif // UTILS_FILESYSTEM_HPP