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/API/RpcApi/helpers/LimitDecimalPlaces.cpp

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright chargebyte GmbH and Contributors to EVerest
+
+#include "LimitDecimalPlaces.hpp"
+
+#include <cmath>
+#include <iomanip>
+#include <sstream>
+
+namespace helpers {
+
+// This function formats and rounds a double value to a specified number of decimal places
+double round_double(double value, double step, int precision) {
+    double rounded = std::round(value / step) * step;
+
+    std::ostringstream oss;
+    oss << std::fixed << std::setprecision(precision) << rounded;
+
+    return std::stod(oss.str());
+}
+
+// This function recursively rounds all float values in a JSON object or array
+void round_floats_in_json(nlohmann::json& j, int precision) {
+    if (precision == 0) {
+        return; // No rounding needed if precision is 0
+    }
+    if (j.is_object() || j.is_array()) {
+        for (auto& el : j) {
+            round_floats_in_json(el, precision);
+        }
+    } else if (j.is_number_float()) {
+        const double step = std::pow(10.0, -precision);
+        const double value = j.get<double>();
+        j = round_double(value, step, precision);
+    }
+}
+} // namespace helpers