Added BCD.odd testing back in
Add BCD.reduced testing back in

Did the minimal to get the test to pass.

Now that the nibbles outside of the range defined by alpha are
dont-care alpha needs to be taken into consideration in the test.
The tests are currently passing only because alpha defaults to zero.
Reenable the constraint

Alpha is now used as the index in the constructor import algorithm.
Explain the usage of alpha and beta