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/crc/include/everest/crc/crc.hpp

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2020 - 2025 Pionix GmbH and Contributors to EVerest
+
+#ifndef CRC_HPP
+#define CRC_HPP
+#include <cstdint>
+#include <vector>
+
+std::uint16_t calculate_xModem_crc16(const std::vector<std::uint8_t>& message);
+#endif