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/examples/test_udp_server.cpp

@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2020 - 2025 Pionix GmbH and Contributors to EVerest
+#include <everest/io/udp/udp_socket.hpp>
+#include <iostream>
+#include <thread>
+
+using namespace everest::lib::io::udp;
+using namespace std::chrono_literals;
+
+auto to_string_data(const udp_payload& d) {
+    return std::string(d.buffer.begin(), d.buffer.end());
+}
+
+std::ostream& operator<<(std::ostream& os, udp_payload const& p) {
+    os << "[UDP ( " << p.size() << " )]: " << to_string_data(p) << " ";
+    return os;
+}
+
+int main() {
+    std::cout << "udp server" << std::endl;
+    udp_client_socket socket;
+
+    socket.open_as_server(7766);
+
+    std::cout << "UDP socket open? -> " << socket.is_open() << std::endl;
+
+    while (socket.is_open()) {
+        udp_payload payload;
+        auto source = socket.rx(payload);
+
+        if (source) {
+            std::cout << payload << std::endl;
+            socket.tx(payload);
+        } else {
+            std::cout << "no value" << std::endl;
+        }
+        std::this_thread::sleep_for(500ms);
+    }
+
+    return 0;
+}