Feature - added create/delete/COV services for analog, binary, and multistate objects (#612)

* Added Create/Delete object services to Analog Input, Analog Value, Binary Input, Binary Value, Multistate Input, Multistate Value object examples, and updated their units tests.

src/bacnet/basic/object/ao.c

@@ -903,14 +903,18 @@ bool Analog_Output_Encode_Value_List(
     bool status = false;
     struct object_data *pObject;
     const bool in_alarm = false;
-    const bool fault = false;
+    bool fault = false;
     const bool overridden = false;
 
     pObject = Keylist_Data(Object_List, object_instance);
     if (pObject) {
+        if (pObject->Reliability != RELIABILITY_NO_FAULT_DETECTED) {
+            fault = true;
+        }
         status = cov_value_list_encode_real(value_list, pObject->Prior_Value,
             in_alarm, fault, overridden, pObject->Out_Of_Service);
     }
+    
     return status;
 }