CRC-8 algorithm in m3/y

[uhi22]

Published a demo which runs over the 870 samples of the 0x249, calculates the CRC and compares it with the CRC from the log.
Result: all fits.
https://github.com/uhi22/tesla-crc

[tg1929]

Thanks uhi22, nice description in the Readme. It might take me a few days to get a chance to test it out.

[uhi22]

Added the check of the log for 0x229 into tesla-crc-filereader.c. Perfect fit, no remaining question marks.