Bugfix/read range trend log buffer (#947)

* Fixed ReadRange app to read and pretty-print a Trend Log log-buffer

src/bacnet/channel_value.h

@@ -1,6 +1,6 @@
 /**
  * @file
- * @brief BACnet single precision REAL encode and decode functions
+ * @brief BACnet Channel Value data type
  * @author Steve Karg <skarg@users.sourceforge.net>
  * @date 2012
  * @copyright SPDX-License-Identifier: MIT
@@ -14,7 +14,6 @@
 /* BACnet Stack defines - first */
 #include "bacnet/bacdef.h"
 #include "bacnet/lighting.h"
-#include "bacnet/lighting.h"
 
 /* BACNET_CHANNEL_VALUE decodes WriteProperty service requests
    Choose the datatypes that your application supports */