@Override
  public TaskDispatcher resolve (Task aTask) {
    if(aTask.getType().equals(DSL.EACH)) {
      return this;
    }
    return null;
  }
A {@link TaskDispatcher} implementation which implements a parallel
for-each construct. The dispatcher works by executing 
the <code>iteratee</code> function on each item on the <code>list</code>.

@author Arik Cohen
@since Apr 25, 2017
src/main/java/com/creactiviti/piper/core/task/EachTaskDispatcher.java