One file in a zip archive, as its central directory describes it. Most fields are the zip
format's own; filename points into the directory's memory_block.
Fields
- filename: string
- position_in_file: s64
- version_made_by: u16
- version_needed_to_extract: u16
- bit_flag: u16
- crc: u32
- compressed_len: u32
- chunk_len: u32
- name_len: u16
- extra_field_len: u16
- file_comment_len: u16
- internal_attributes: u16
- external_attributes: u32
- chunk_offset: u32