add support for Dyness battery

[andysu]

As i know - dyness (B4850) has the same protocol as Pylon

In my case -
DIP - 0100
Serial port speed - 9600bps

BUT
>>> p.scan_for_batteries(1,2) {1: 'ëD$\x8dëD$\x8dëD$\x8dëD$\x8d'}

>>> p.get_module_serial_number() Container(CommandValue=2, ModuleSerialNumber=b'\xc3\xabD$\xc2\x8d\xc3\xabD$\xc2\x8d\xc3\xabD$\xc2\x8d\xc3\xabD$\xc2\x8d')

and
p.get_values() not wiorking
work only
p.get_values_single(0x2)