Add CRC16 verification

[ndokter]

Telegram values include a CRC16 checksum which can be used that the telegram is valid. This check prevents invalid data due to corrupted values, as the serial interface doesn't have any built-in verification.

It will raise a subtype of the existing ParseError from the serial client.

The CRC16 check currently verifies DSMR 4.2 telegrams. Telegrams of other versions are appreciated. I will anonymize them of equipment identifiers before adding them to the repository. If you decide to supply one, please leave them intact so i have valid data to test with before anonimizing them.