Updated IAR project files for BDK port on AVR. Added main loop I/O toggle to monitor timing.

bacnet-stack/ports/bdk-atxx4-mstp/main.c

@@ -50,6 +50,12 @@ int main(
     void)
 {
     init();
+    /* Configure the watchdog timer - Disabled for debugging */
+#ifdef NDEBUG
+    watchdog_init(2000);
+#else
+    watchdog_init(0);
+#endif
     timer_init();
     adc_init();
     input_init();