[添加]opcua exporter

opcua-expoter/fault-simulation-algorithm/step/step.h

@@ -0,0 +1,21 @@
+//
+// Created by baiguwen on 2022/4/20.
+//
+
+#ifndef FAULT_SIMULATION_ALGORITHM_MAIN_STEP_H
+#define FAULT_SIMULATION_ALGORITHM_MAIN_STEP_H
+#include <algorithm.hpp>
+
+class step : public algorithm {
+public:
+    void set_config(const nlohmann::json &config) override;
+
+    nlohmann::json config() override;
+
+    double eval(double value) override;
+
+protected:
+    nlohmann::json config_{};
+    double         amplitude_base_{0};
+};
+#endif //FAULT_SIMULATION_ALGORITHM_MAIN_STEP_H