[RAT-187] Add 'SAR', 'HAR', 'WSR' as archives which should be ignored.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1636696 13f79535-47bb-0310-9956-ffa450edef68
[RAT-185] - .repository folder should be ignored

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1636706 13f79535-47bb-0310-9956-ffa450edef68