TrigHLTJetHypo - on request of the menu decelopers, make Tool names unique within a chain only
Until now, each AlgTool type which was part of the jet hypo system received a unique (for the Tool type) index to be used in the name of the tool. Now, these indices are set to 0 for each chain. The full name of each tool is associated with a parent tool. The top level tool contains the chain name, so each fully qualified name is unique.