fix: modbus功能码枚举

+package org.thingsboard.server.common.data.yunteng.enums;
+
+public enum TkModebusFunctionCode {
+    READ_COIL("01",1),
+    REAL_SPLIT_INPUT("02",1),
+    READ_PERSIST_REGISTER("03",1),
+    READ_INPUT_REGISTER("04",1),
+    WRITE_ONE_COIL("05",1),
+    WRITE_ONE_REGISTER("06",1),
+    WRITE_MANY_COIL("0F",1),
+    WRITE_MANY_REGISTER("10",2),
+    READ_FILE("14",1),
+    WRITE_FILE("15",1),
+    PREVENT_WRITE_REGISTER("16",1),
+    READ_WRITE_MANY_REGISTER("17",1),
+    READ_DEVICE_IDENTIFICATION("2B",1);
+
+
+    /**16进制功能码*/
+    private final String code;
+    /**寄存器值长度*/
+    private final Integer valueSize;
+
+    TkModebusFunctionCode(String code, Integer valueSize) {
+        this.code = code;
+        this.valueSize = valueSize;
+    }
+
+}