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/EVSE/EvseManager/PersistentStore.cpp

@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2023 Pionix GmbH and Contributors to EVerest
+
+#include "PersistentStore.hpp"
+
+namespace module {
+
+PersistentStore::PersistentStore(const std::vector<std::unique_ptr<kvsIntf>>& _r_store, const std::string module_id) :
+    r_store(_r_store) {
+
+    if (r_store.size() > 0) {
+        active = true;
+    }
+
+    session_key = module_id + "_session";
+}
+
+void PersistentStore::store_session(const std::string& session_uuid) {
+    if (active) {
+        r_store[0]->call_store(session_key, session_uuid);
+    }
+}
+
+void PersistentStore::clear_session() {
+    if (active) {
+        r_store[0]->call_store(session_key, "");
+    }
+}
+
+std::string PersistentStore::get_session() {
+    if (active) {
+        auto r = r_store[0]->call_load(session_key);
+        try {
+            if (std::holds_alternative<std::string>(r)) {
+                return std::get<std::string>(r);
+            }
+        } catch (...) {
+            return {};
+        }
+    }
+    return {};
+}
+
+} // namespace module