Added object-name c-string getter function to basic objects so they can be referenced to free if dynamically created. (#754)

* Added basic object-name get for ASCII names to enable free if they were dynamically created. Added unit testing to validate the basic object ASCII object-name API.

* Removed static scope on character array used for name since the array gets copied into characterstring array and static is not needed.

src/bacnet/basic/object/netport.c

@@ -322,6 +322,7 @@ bool Network_Port_Name_Set(uint32_t object_instance, char *new_name)
     index = Network_Port_Instance_To_Index(object_instance);
     if (index < BACNET_NETWORK_PORTS_MAX) {
         Object_List[index].Object_Name = new_name;
+        status = true;
     }
 
     return status;