Add configuration and tasks for capturing tomcat libs for RecompilingJspClassLoader

[labkey-susanh]

Rationale

The RecompilingJspClassLoader currently depends on getting the tomcat libraries it needs from the local installation of tomcat. As we march toward using embedded Tomcat, we need a different way to make these jar files available for the classpath. This PR adds a task (and its cleaning partner) to copy the same dependencies used by Gradle to a build/jspRecompiling directory. The task depends on the apacheTomcatVersion property so should get refreshed as new versions are requested.

Related Pull Requests

• Update classpath construction for RecompilingJspClassLoader  platform#5174

Changes

• add jspRecompileSetup and cleanJspRecompileSetup tasks to the :server project along with the requisite configuration

[labkey-jeckels]

Tested locally - looks good