Standards Maintenance Issue #625

[CDR-API-Stream]

Added optional period field to following energy rate objects to help support stepped tariff calculation:

• EnergyPlanControlledLoad.singleRate
• EnergyPlanSolarFeedInTariffV2.singleRate
• EnergyPlanControlledLoad.timeOfUseRates
• EnergyPlanSolarFeedInTariffV2.timeVaryingTariffs