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/HardwareDrivers/PowerMeters/IsabellenhuetteIemDcr/main/httpClient.hpp

@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#ifndef EVEREST_CORE_MODULE_HTTPCLIENT_H
+#define EVEREST_CORE_MODULE_HTTPCLIENT_H
+
+#include "fmt/format.h"
+#include "httpClientInterface.hpp"
+#include <curl/curl.h>
+#include <everest/logging.hpp>
+#include <regex>
+#include <stdexcept>
+#include <string>
+
+namespace module::main {
+
+class HttpClient : public HttpClientInterface {
+
+public:
+    HttpClient() = delete;
+
+    HttpClient(const std::string& host_arg, int port_arg) {
+        // initialize libcurl - this is safe to do multiple times, if there are multiple HttpClients
+        // Note: This is only thread-safe after libcurl 7.84.0, but we use 8.4.0, so it should be fine
+        curl_global_init(CURL_GLOBAL_DEFAULT);
+        // These are saved in the client to avoid making the controller pass them at every call
+        host = host_arg;
+        port = port_arg;
+    }
+    ~HttpClient() override {
+        // release the libcurl resources - this must be done once for every call to curl_global_init().
+        // Note: This is only thread-safe after libcurl 7.84.0, but we use 8.4.0, so it should be fine
+        curl_global_cleanup();
+    }
+
+    [[nodiscard]] HttpResponse get(const std::string& path) const override;
+    [[nodiscard]] HttpResponse post(const std::string& path, const std::string& body) const override;
+
+private:
+    std::string host;
+    int port;
+
+    [[nodiscard]] CURL* create_curl_handle_and_setup_url(const std::string& path) const;
+    HttpResponse perform_request(CURL* connection, const std::string& request_body, const char* method_name,
+                                 const std::string& path) const;
+};
+
+} // namespace module::main
+
+#endif // EVEREST_CORE_MODULE_HTTPCLIENT_H