CRC tests failed to exercise handling of the initial and final-xor
values with respect to reflection parameters. Add tests covering this.
Expected behaviour is that the initial value is always non-reflected and
the final-xor happens after the optional output reflection.
* Change "is supported" check to be a macro, so it can be done at
compile-time.
* Eliminate weird shift on 7-bit CRCs.
* Add support for 32-bit CRCs and reversals to TMPM3HQ.
* Change "is supported" check to be a macro, so it can be done at
compile-time.
* Eliminate weird shift on 7-bit CRCs.
* Add support for 32-bit CRCs and reversals to TMPM3HQ.