refs #4996 moved test files to plugin

plugins/Contents/.gitignore

plugins/Contents/tests/ContentsTest.php

...nts.getContentNames_lastN__API.getProcessedReport_day.xml

...ts.getContentPieces_lastN__API.getProcessedReport_day.xml

...ontents/tests/expected/test_Contents__Actions.get_day.xml

...tents/tests/expected/test_Contents__Actions.get_month.xml

.../expected/test_Contents__Contents.getContentNames_day.xml

...xpected/test_Contents__Contents.getContentNames_month.xml

...expected/test_Contents__Contents.getContentPieces_day.xml

...pected/test_Contents__Contents.getContentPieces_month.xml

...contentInteractionMatch__Contents.getContentNames_day.xml

...ontentInteractionMatch__Contents.getContentPieces_day.xml

...ents_contentTargetMatch__Contents.getContentNames_day.xml

...nts_contentTargetMatch__Contents.getContentPieces_day.xml

...contentNameOrPieceMatch__Contents.getContentNames_day.xml

...ontentNameOrPieceMatch__Contents.getContentPieces_day.xml

plugins/Contents/tests/fixtures/TwoVisitsWithContents.php

plugins/Contents/tests/processed/.gitkeep