Add logback-test.xml to reduce test output
Add logback-test.xml to reduce test output

Signed-off-by: poorna <68dc2b0de6d2c86d9188e3bb86def8454ca330ce@apache.org>

poornachandra/incubator-tephra,gokulavasan/incubator-tephra,gokulavasan/incubator-tephra,poornachandra/incubator-tephra,anwar6953/incubator-tephra,gokulavasan/incubator-tephra,anwar6953/incubator-tephra,poornachandra/incubator-tephra