Generate schedules only for things that exist

[rajeee]

Pull Request Description

Currently, the schedule generator produces schedules for all stochastic schedules - even for enduses that don't exist in the building. That's unnecessary computation and storage and also a potential source of confusion. This PR modifies the generator to only generate schedules for things that exist.

More specifically, the following list of schedules will be generated only if the corresponding end use exist in the HPXML file.

• dishwasher
• hot_water_dishwasher
• clothes_washer
• hot_water_clothes_washer
• clothes_dryer
• cooking_range
• ev_battery_charging
• ev_battery_discharging
• ev_occupant
• lighting_garage (only if garage is present)
• ceiling_fan
• plug_loads_other
• plug_loads_tv

The following schedules are always generated

• occupants
• lighting_interior
• hot_water_fixtures

Checklist

Not all may apply:

• Schematron validator (EPvalidator.xml) has been updated
• Sample files have been added/updated (openstudio tasks.rb update_hpxmls)
• Tests have been added/updated (e.g., HPXMLtoOpenStudio/tests/test*.rb and/or workflow/tests/test*.rb)
• Documentation has been updated
• Changelog has been updated
• openstudio tasks.rb update_measures has been run
• No unexpected changes to simulation results of sample files