CCITT_Kermit
Calculates CRC CCITT (Kermit) over given range of bytes from the block of data. It is using the 0x1021 polynomial and 0x0000 initial value.
See: http://reveng.sourceforge.net/crc-catalogue/16.htm#crc.cat.kermit
Return
the CRC-16 CCITT (Kermit).
Parameters
data
The input data block for computation.
offset
Offset from where the range starts.
length
Length of the range in bytes.