ENH: clean codes about device

JIRA: [STUDIO-13609]
Change-Id: I591de7033360b9570600006cfbce2148a8d031d5
(cherry picked from commit e9c774be8f4c89b8dafa14ef56913612fb68bd0c)

src/slic3r/GUI/DeviceCore/DevBed.h

@@ -0,0 +1,30 @@
+#pragma once
+#include <nlohmann/json.hpp>
+#include "slic3r/Utils/json_diff.hpp"
+
+namespace Slic3r {
+
+class MachineObject;
+
+class DevBed
+{
+public:
+    DevBed(MachineObject *obj) : m_owner(obj), bed_temp(0.0f), bed_temp_target(0.0f) {}
+
+    float GetBedTemp() { return bed_temp; };
+    float GetBedTempTarget() { return bed_temp_target; };
+
+public:
+
+    static void ParseV1_0(const json &print_json, DevBed *system);
+    static void ParseV2_0(const json &print_json, DevBed *system);
+
+private:
+
+    float bed_temp;
+    float bed_temp_target;
+
+    MachineObject* m_owner = nullptr;
+};
+
+} // namespace Slic3r