Add redeployResources entries for files that don't exist with a last modified time of zero to detect the addition a WAR or XML when just a DIR exists

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1483786 13f79535-47bb-0310-9956-ffa450edef68
More addition test cases

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1483787 13f79535-47bb-0310-9956-ffa450edef68