Device: Implement version handling

include/icsneo/communication/message/versionmessage.h

@@ -0,0 +1,27 @@
+#ifndef __VERSIONMESSAGE_H_
+#define __VERSIONMESSAGE_H_
+
+#ifdef __cplusplus
+
+#include "icsneo/communication/message/message.h"
+#include "icsneo/device/deviceversion.h"
+#include "icsneo/platform/optional.h"
+
+namespace icsneo {
+
+class VersionMessage : public Message {
+public:
+	VersionMessage(bool main) : MainChip(main) { network = Network::NetID::Main51; }
+
+	// If true, the included version is for the main chip
+	const bool MainChip;
+
+	// nullopt here indicates invalid
+	std::vector< optional<DeviceAppVersion> > Versions;
+};
+
+}
+
+#endif // __cplusplus
+
+#endif