Refactorung to simplify FastReduction configuration, remove support for AlgTool trees

ConditionsToolSetterHT.py
	minor mods to deal with condition tree root node

NodeSplitterVisitor
	New visitor. While navigating the Conditions tree, split
	nodes with the "simple" scenatario and n > 1 CompoundCondition s
	into nodes with n nodes with a one CompoundCondition. This functionality
	was previously in the ToolSetter visitors.

TrigJetHypoToolConfig.py
	use new NodeSplitterVisitor to split Condition nodes with
	multiple CompoundConditions

testChainDictMaker.py
	add an "agg"  test chain