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/Examples/CppExamples/Example/example/exampleImpl.cpp

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2020 - 2021 Pionix GmbH and Contributors to EVerest
+#include "exampleImpl.hpp"
+
+// initial cpp template for interface example_child
+// this file should not be overwritten by the code generator again
+
+namespace module {
+namespace example {
+
+void exampleImpl::init() {
+    mod->mqtt.subscribe("external/a",
+                        [](json data) { EVLOG_error << "received data from external MQTT handler: " << data.dump(); });
+}
+
+void exampleImpl::ready() {
+    publish_max_current(config.current);
+    mod->r_kvs->call_store("test", "test");
+}
+
+bool exampleImpl::handle_uses_something(std::string& key) {
+    if (mod->r_kvs->call_exists(key)) {
+        EVLOG_debug << "IT SHOULD NOT AND DOES NOT EXIST";
+    }
+
+    Array test_array = {1, 2, 3};
+    mod->r_kvs->call_store(key, test_array);
+
+    bool exi = mod->r_kvs->call_exists(key);
+
+    if (exi) {
+        EVLOG_debug << "IT ACTUALLY EXISTS";
+    }
+
+    auto ret = mod->r_kvs->call_load(key);
+
+    Array arr = std::get<Array>(ret);
+
+    EVLOG_debug << "loaded array: " << arr << ", original array: " << test_array;
+
+    return exi;
+};
+
+} // namespace example
+} // namespace module