unityz 0.1.9

Changed

• Default info on a format 2-8 SerializedFile inside UnityFS decompresses
  only the 16-byte header and the trailing metadata, not the object-data
  hole in between. Format 9+ still uses the [0, data_offset) prefix.
• Built-in tree tests walk the shipped release table instead of a
  hardcoded count, so adding a dump cannot leave the lookup coverage stale.