[GH] Add bnbarham to codeowners

Also sort the list alphabetically.

Author: bnbarham

CODEOWNERS

@@ -2,12 +2,12 @@
 # particular part of Swift are reviewed, either by themselves or by someone else.
 # They are also the gatekeepers for their part of Swift, with the final word on
 # what goes in or not.
-# 
+#
 # The list is sorted by surname and formatted to allow easy grepping and
 # beautification by scripts.  The fields are: name (N), email (E), web-address
 # (W), PGP key ID and fingerprint (P), description (D), and snail-mail address
 # (S).
- 
+
 # N: Boris Buegling
 # E: [email protected]
 # D: Package Manager
@@ -20,8 +20,12 @@
 # E: [email protected]
 # D: Package Manager
 
+# N: Ben Barham
+# E: [email protected]
+# D: Package Manager
+
 ###
 
 # The following lines are used by GitHub to automatically recommend reviewers.
 
-* @neonichu @tomerd @MaxDesiatov
+* @bnbarham @MaxDesiatov @neonichu @tomerd