Change log for Mail::AuthenticationResults::SpamAssassin

1.20200220 2020-02-20 17:55:17+00:00 UTC
  - Allow multiple spf keys to be checked

1.20180927 2018-09-27 10:58:48+10:00 Australia/Melbourne
  - Forked from Mail::AuthenticationResults into own repo.
  - Added a SpamAssassin plugin for parsing headers.

