Use default CDF tables when initialising coef probs.
When creating the CDF head, do not use 8-bit probabilities to make the CDF tables, but load them directly. CDF tail values are created from the ONE_TOKEN relative probability as before. No change to BDR. Change-Id: I7386b8952f6f69cc9b77aa1b2bee71cf8e3cc9ff
Showing with 734 additions and 35 deletions