livoxProto1: Implement async getOrCreateDeviceReq+destroyDeviceReq

These are now both fully asynchronous. They also work fully
and both connect and disconnect to/from the Avia just fine,
in all tested scenarios.

commonLibs/livoxProto1/protocol.h

@@ -229,6 +229,23 @@ struct HeartbeatMessage
 	bool validateCrc32() const;
 } __attribute__((packed));
 
+/**		EXPLANATION:
+ * Complete disconnect command frame for disconnecting from Livox devices.
+ * This is the complete wire format including header, command fields, and footer.
+ */
+struct DisconnectMessage
+{
+	Header header;			// 0-8: Protocol frame header
+	Command command;		// 9-10: Command identification
+	Footer footer;			// 11-14: Protocol frame footer
+
+	DisconnectMessage();
+	uint32_t calculateCrc32() const;
+	void swapContentsToProtocolEndianness();
+	bool sanityCheck() const;
+	bool validateCrc32() const;
+} __attribute__((packed));
+
 } // namespace comms
 } // namespace livoxProto1