gh-115961: Add name and mode attributes for compressed file-like objects (GH-116036)

* Add name and mode attributes for compressed and archived file-like objects
  in modules bz2, lzma, tarfile and zipfile.
* Change the value of the mode attribute of GzipFile from integer (1 or 2)
  to string ('rb' or 'wb').
* Change the value of the mode attribute of ZipExtFile from 'r' to 'rb'.

Lib/gzip.py

@@ -15,7 +15,8 @@ __all__ = ["BadGzipFile", "GzipFile", "open", "compress", "decompress"]
 
 FTEXT, FHCRC, FEXTRA, FNAME, FCOMMENT = 1, 2, 4, 8, 16
 
-READ, WRITE = 1, 2
+READ = 'rb'
+WRITE = 'wb'
 
 _COMPRESS_LEVEL_FAST = 1
 _COMPRESS_LEVEL_TRADEOFF = 6