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/Auth/lib/ConnectorStateMachine.cpp

@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include <ConnectorStateMachine.hpp>
+
+namespace module {
+
+ConnectorStateMachine::ConnectorStateMachine(ConnectorState initial_state) : state(initial_state) {
+}
+
+bool ConnectorStateMachine::handle_event(ConnectorEvent event) {
+    switch (state) {
+    case ConnectorState::AVAILABLE:
+        switch (event) {
+        case ConnectorEvent::TRANSACTION_STARTED:
+            state = ConnectorState::OCCUPIED;
+            return true;
+        case ConnectorEvent::DISABLE:
+            state = ConnectorState::UNAVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::UNAVAILABLE:
+        switch (event) {
+        case ConnectorEvent::ENABLE:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::UNAVAILABLE_FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::FAULTED:
+        switch (event) {
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::DISABLE:
+            state = ConnectorState::UNAVAILABLE_FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::OCCUPIED:
+        switch (event) {
+        case ConnectorEvent::SESSION_FINISHED:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::FAULTED_OCCUPIED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::FAULTED_OCCUPIED:
+        switch (event) {
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::OCCUPIED;
+            return true;
+        case ConnectorEvent::SESSION_FINISHED:
+            state = ConnectorState::FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::UNAVAILABLE_FAULTED:
+        switch (event) {
+        case ConnectorEvent::ENABLE:
+            state = ConnectorState::FAULTED;
+            return true;
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::UNAVAILABLE;
+            return true;
+        default:
+            return false;
+        }
+
+    default:
+        // could/should not happen!
+        return false;
+    }
+}
+
+ConnectorState ConnectorStateMachine::get_state() const {
+    return this->state;
+}
+
+} // namespace module