Fixed the CRC table generator.

The script now generates CRC tables properly.
Moved the CRC table generator script.
CRC table generator: bug fix.

Fixed an issue where a comma followed the last variable of the array.
CRC table generator: Added C++ compatibility.

The generated .c file can now be compiled using a C++ compiler.
CRC computation: fixed data sizes and generated the CRC table.

Generated a CRC table using 0x1021 as polynomial.
Modified the first CRC unit test due to a change of polynomial.
Unit test: Modified the Makefile to enable smooth compilation.
Modified the unit test .gitignore file.

The GTest directory was not set properly.