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/API/EVerestAPI/powermeter_API/main/powermeterImpl.cpp

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2020 - 2026 Pionix GmbH and Contributors to EVerest
+
+#include "powermeterImpl.hpp"
+
+#include <everest_api_types/powermeter/API.hpp>
+#include <everest_api_types/powermeter/codec.hpp>
+#include <everest_api_types/powermeter/json_codec.hpp>
+#include <everest_api_types/powermeter/wrapper.hpp>
+#include <everest_api_types/utilities/AsyncApiRequestReply.hpp>
+
+#include <generated/types/powermeter.hpp>
+
+namespace module {
+namespace main {
+
+namespace API_types_ext = ev_API::V1_0::types::powermeter;
+namespace types_int = types::powermeter;
+using status = types_int::TransactionRequestStatus;
+
+using namespace everest::lib::API;
+
+void powermeterImpl::init() {
+    timeout_s = mod->config.cfg_request_reply_to_s;
+}
+
+void powermeterImpl::ready() {
+}
+
+template <class T, class ReqT>
+auto powermeterImpl::generic_request_reply(T const& default_value, ReqT const& request, std::string const& topic) {
+    using ExtT = decltype(API_types_ext::to_external_api(std::declval<T>()));
+    auto result = everest::lib::API::request_reply_handler<ExtT>(mod->mqtt_v, mod->helper.get_topics(), request, topic,
+                                                                 timeout_s);
+    if (!result) {
+        return default_value;
+    }
+    return result.value();
+}
+
+types_int::TransactionStartResponse powermeterImpl::handle_start_transaction(types::powermeter::TransactionReq& value) {
+    static const types_int::TransactionStartResponse default_response{status::UNEXPECTED_ERROR, std::nullopt,
+                                                                      std::nullopt, std::nullopt};
+    return generic_request_reply(default_response, value, "start_transaction");
+}
+
+types_int::TransactionStopResponse powermeterImpl::handle_stop_transaction(std::string& transaction_id) {
+    static const types_int::TransactionStopResponse default_response{status::UNEXPECTED_ERROR, std::nullopt,
+                                                                     std::nullopt, std::nullopt};
+    return generic_request_reply(default_response, transaction_id, "stop_transaction");
+}
+
+} // namespace main
+} // namespace module