Removed the object-table function macros from each demo object header file since it was very difficult to maintain when new functions are added. Added device-client.c file which is a small device object just for simple clients. Updated most Makefiles of client demo applications to utilize device-client.c file.

Added two device object table functions for COV support.
Corrected demo COV handler interaction with TSM, COV flags, and multiple subscriptions for the same object.

bacnet-stack/demo/writefile/main.c

@@ -50,13 +50,6 @@
 #include "txbuf.h"
 #include "dlenv.h"
 
-/* All included BACnet objects */
-static object_functions_t Object_Table[] = {
-    {DEVICE_OBJ_FUNCTIONS},
-    {MAX_BACNET_OBJECT_TYPE, NULL, NULL, NULL,
-        NULL, NULL, NULL, NULL, NULL, NULL}
-};
-
 /* buffer used for receive */
 static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
 
@@ -140,7 +133,7 @@ static void LocalIAmHandler(
 static void Init_Service_Handlers(
     void)
 {
-    Device_Init(&Object_Table[0]);
+    Device_Init(NULL);
     /* we need to handle who-is
        to support dynamic device binding to us */
     apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);