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/modules/Simulation/YetiSimulator/util/util.cpp

@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include "util.hpp"
+#include <chrono>
+#include <ctime>
+#include <iomanip>
+#include <sstream>
+#include <string>
+
+namespace module::util {
+std::string get_current_iso_time_string() {
+    using std::chrono::system_clock;
+    const auto date = system_clock::to_time_t(system_clock::now());
+
+    auto string_stream = std::stringstream{};
+    // NOLINTNEXTLINE(concurrency-mt-unsafe)
+    string_stream << std::put_time(gmtime(&date), "%FT%TZ");
+    const auto iso_time_string = string_stream.str();
+    return iso_time_string;
+}
+
+} // namespace module::util