[modbus] ajout log debug pour lecture des variables

pyheatpump/cli.py

         ))
         res = modbus.read_holding_registers(analog.start_address, analog.end_address)
 
+        logger.debug(f'analog length : {len(res)}')
         for r in range(len(res)):
             var = Variable(**{
                 'type': analog,
         ))
         res = modbus.read_holding_registers(integer.start_address, integer.end_address)
 
+        logger.debug(f'integer length : {len(res)}')
         for r in range(len(res)):
             var = Variable(**{
                 'type': integer,
         ))
         res = modbus.read_coils(digital.start_address, digital.end_address)
 
+        logger.debug(f'digital length : {len(res)}')
         for r in range(len(res)):
             var = Variable(**{
                 'type': digital,