Fix JetTrackSelector multiple output containers
As a result of private tool handles multiple JetTrackSelector tools were being defined with the same output container.
This tool is only being used to wrap the underlying InDetTrackSelectionTool and does not record anything so this caused warnings but no errors.
This simple fix adds a JetTrackSelector2 tool without input/output containers and uses the new tool where necessary.
JetTrackSelector is untouched to prevent breaking cases where the output container is needed.
Edited by Galen Rhodes Gledhill