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/lib/everest/slac/io/src/io.cpp

@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2022 - 2022 Pionix GmbH and Contributors to EVerest
+#include <everest/slac/io.hpp>
+
+#include <stdexcept>
+#include <thread>
+
+void SlacIO::init(const std::string& if_name) {
+    if (!slac_channel.open(if_name)) {
+        throw std::runtime_error(slac_channel.get_error());
+    }
+}
+
+void SlacIO::run(std::function<InputHandlerFnType> callback) {
+    input_handler = callback;
+
+    running = true;
+
+    loop_thread = std::thread(&SlacIO::loop, this);
+}
+
+void SlacIO::quit() {
+    if (!running) {
+        return;
+    }
+
+    running = false;
+
+    loop_thread.join();
+}
+
+void SlacIO::loop() {
+
+    while (running) {
+        if (slac_channel.read(incoming_msg, 10)) {
+            input_handler(incoming_msg);
+        }
+    }
+}
+
+void SlacIO::send(slac::messages::HomeplugMessage& msg) {
+    // FIXME (aw): handle errors
+    slac_channel.write(msg, 1);
+}
+
+const uint8_t* SlacIO::get_mac_addr() /* const */ {
+    return slac_channel.get_mac_addr();
+}