CHP class size and financial input output updates

Changed

• Changed Financial breakeven_cost_of_emissions_reduction_per_tonnes_CO2 to breakeven_cost_of_emissions_reduction_per_tonne_CO2
• Changed CHP.size_class to start at 0 instead of 1, consistent with the API, and 0 represents the average of all size_classs
• Change CHP.max_kw to be based on either the heuristic sizing from average heating load (if heating) or peak electric load (if no heating, aka Prime Generator in the UI)
  • The "big_number" for max_kw was causing the model to take forever to solve and some erroneous behavior; this is also consistent with the API to limit max_kw to a reasonable number

Added

• Added previously missing Financial BAU outputs: lifecycle_om_costs_before_tax, lifecycle_om_costs_after_tax, year_one_om_costs_before_tax

Fixed

• Fixed if statement to determing ElectricLoad "year" from && to ||, so that defaults to 2017 if any CRB input is used