Move all the static encoder codebooks to 'char' lengthlists rather than 'long' as...

Move all the static encoder codebooks to 'char' lengthlists rather than 'long' as the largest value for a lengthlist entry is 32 and the lengthlists are large.

Alter the codebook generation tools in vq/ to generate the codebooks properly given the new type.

[Hopefully] no functional change.

svn path=/trunk/vorbis/; revision=19057