Fix #8879. Add os.link support to Windows.

Additionally, the st_ino attribute of stat structures was not being filled
in. This was left out of the fix to #10027 and was noticed due to
test_tarfile failing when applying the patch for this issue. An earlier
version of the fix to #10027 included st_ino, but that attribute got lost
in the shuffle of a few review/fix cycles. All tests pass.
diff --git a/Misc/NEWS b/Misc/NEWS
index fb61ac8..6891d1e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,8 @@
 Core and Builtins
 -----------------
 
+- Issue #8879. Add os.link support for Windows.
+
 - Issue #10027. st_nlink was not being set on Windows calls to os.stat or
   os.lstat. Patch by Hirokazu Yamamoto.