Details:
- Expanded the BLIS_PACK_SCHEMA_BITS value in bli_type_defs.h to
include all six bits presently used in the pack schema bitfield of
the info field of obj_t structs. Prior to this commit, the macro
constant only included the lowest five bits, which excluded the
"is or is not packed" bit. This manifested as a strange bug in
probably many level-2 codes that invoked packing, though we only
observed it in ger before fixing. Thanks to Devin Matthews for
finding and reporting this bug.