Spec: Update variables to reflect final 2.2 bitstream
Spec: Update variables to reflect final 2.2 bitstream

- Associated with KhronosGroup/glTF#1114

louquillio/draco,louquillio/draco,google/draco,google/draco,google/draco,google/draco,louquillio/draco,google/draco,google/draco,louquillio/draco,louquillio/draco,louquillio/draco,google/draco