Work toward dijet hypo from leading or next to leading jet pairs in pt.
In run 2, a hypo was run that tested whether the (first, second) or (second, third) jets from the list of events in the event when this was ordered downwards by pt. he code in this merge request includes a FastReduction filter - RangeFilter - filter returns a pair of iterators that point into an ordered set of jets. The range pointed at by these iterators is set when the filter is instantiated. For now, the ordering is fixed to be pt, but it would be easy to extend the code to allow ordering by other parameters.
@jbossios @valentem @doglioni @peter
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Edited by Peter Sherwood