#160 start of implementation of the modbus master protocol
#160 uncomment WaitEvent() and ClearEvent()
#160 add types and interfaces of modbus master in ciaaModbus.h
#160 remove public interfaces
#160 implement modbus master open
#160 create blinking_modbus_master
#113 improve authors and modification history
#160 add function masterTask
#160 improve name modbus event, MODBUSME -> MODBUSE
#160 fix error, compile modbus master if > 0
#160 add retry count and timeout
#160 implement read holding registers, in modbus master
#160 complete function gateway add master
#68 error will be reported if pdu length is wrong
#68 improve test write single register
#164 check response timeout
#160 start of implementation of the modbus master protocol
#160 uncomment WaitEvent() and ClearEvent()
#160 add types and interfaces of modbus master in ciaaModbus.h
#160 remove public interfaces