Open the current entry as an input stream. Before this call the
caller must use zipper_goto/2 to position to archive. Options:
- type(+Type)
- encoding(+Encoding)
- bom(+Boolean)
- Determine type and encoding of the stream. The semantics
is the same as for open/4.
- release(+Boolean)
- If
true (default), release te archive for access by other
threads after the entry is closed.
It is allowed to call zip_close/1 immediately after this call, in
which case the archive is closed when the entry is closed.