Add support for hex values in REPL client.write_registers #628
Description
Modbus registers are 16-bit and sometimes it is easier to understand their values when expressed in hex.
However, in the REPL tool "pymodbus.console", it looks like you cannot use hex for the values:
client.write_registers unit=1 address=9 values=0x0331
ValueError("invalid literal for int() with base 10: '0x0331'")
It would be nice if you could use hex like depicted above.