added file introducing the utilities.

bacnet-stack/bin/readme.txt

@@ -0,0 +1,37 @@
+BACnet Tools are binary demo application command line 
+utilities that use BACnet/IP to perform a variety of 
+BACnet services. Some tools use BACnet WhoIs to bind to 
+devices, but can also use a static binding file address_cache.  
+
+Most of the tools have help (--help option), and use 
+environment variables to configure the datalink. 
+
+Client Tools:
+bacrp - BACnet ReadProperty service
+bacwp - BACnet ReadProperty service
+bacarf - BACnet AtomicReadFile service
+bacawf - BACnet AtomicWriteFile service
+bacdcc - BACnet DeviceCommunicationControl service
+bacrd - BACnet ReinitializeDevice service
+bacwh - BACnet WhoHas service
+bacwi - BACnet WhoIs service
+bacepics - BACnet EPICS for Device object.
+bacts - BACnet TimeSynchronization service
+bacucov - BACnet UnconfirmedChangeOfValue service
+bacrpm - BACnet ReadPropertyMultiple service
+
+Server Tools:
+bacserv - BACnet Device Simulator
+
+Router Tools:
+baciamr - BACnet I-Am-Router to Network message
+bacinitr - BACnet Initialize Router message
+bacwir - BACnet Who-Is Router to Network message
+
+Capture Tool:
+The mstpcap tool is used for capturing MS/TP traffic 
+from an RS-485 serial adapter and saving the packets 
+in a file for viewing by Wireshark.
+
+The source code for the BACnet-Tools can be found at:
+http://bacnet.sourceforge.net/