Update EC to new jevio-4.1 interface

Moving from EvioCompactEventReader to EvioCompactStructureHandler.

git-svn-id: https://clas12svn.jlab.org/repos/clas12/EC_reconstruction/trunk@9447 b9d438ff-8729-0410-a4ab-d2f36c9c72ed
Some refactoring to EC build.xml file

git-svn-id: https://clas12svn.jlab.org/repos/clas12/EC_reconstruction/trunk@9594 b9d438ff-8729-0410-a4ab-d2f36c9c72ed