Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56177
Handle dependency tracking for TLDs when using JspC with a tag library JAR that is located outside of the web application.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1571355 13f79535-47bb-0310-9956-ffa450edef68