Added LFSR creation v1:

Added LFSR creation v1:

  - Calculate value of the LFSR state.

Changes in Sym_exec v6:

  - Changed all const memeber functions to static.

Changes in Extract polynomial v2:

  - Changed extract_polynomial to extract_poly_and_create_lfsr, which calculates polynomial and creates LFSR.
  - Moved some instructions from extract_polynomial to execute_crc_loop.

Changes in CRC detection v5:

  - Instead extract_polynomial, Call extract_poly_and_create_lfsr, check return value and print the LFSR.