path property Null safety

1. Flutter
2. archive_io
3. InputFileStream
4. path property

InputFileStream class

1. Constructors
2. InputFileStream
3. clone
4. Properties
5. bufferPosition
6. bufferRemaining
7. bufferSize
8. byteOrder
9. fileRemaining
10. hashCode
11. isEOS
12. length
13. path
14. position
15. runtimeType
16. Methods
17. close
18. noSuchMethod
19. peekBytes
20. readByte
21. readBytes
22. readString
23. readUint16
24. readUint24
25. readUint32
26. readUint64
27. reset
28. rewind
29. skip
30. subset
31. toString
32. toUint8List
33. Operators
34. operator ==
35. Constants
36. kDefaultBufferSize