Improve entry point, PBES, Calendar, ...

Goal

    1. cf PriorityByEconomicalSystem#closure
    1. PriorityByEconomicalSystem#FinancialPricingModels
    2. (:pagelist $:ActionCost*=- fmt=#simple:)
      1. PmWiki:PageTextVariables#pagelists

HideLeftBoot() ToRefactor