Updated the ALERT reconstruction services package names

This is to be consistent with  the other subsystems package naming
scheme.

Author: Whitney Armstrong

reconstruction/alert/src/main/java/org/jlab/rec/service/AHDCEngine.java

@@ -1,4 +1,4 @@
-package org.jlab.rec.service;
+package org.jlab.service.ahdc;
 
 import org.jlab.clas.reco.ReconstructionEngine;
 import org.jlab.clas.tracking.kalmanfilter.Material;

reconstruction/alert/src/main/java/org/jlab/rec/service/ATOFEngine.java

@@ -1,4 +1,4 @@
-package org.jlab.rec.service;
+package org.jlab.service.atof;
 
 import java.util.ArrayList;