Default values used for outage statistics

When a system does not contain any GeometricDistributionForcedOutage supplemental attributes attached to any components, then the outage rates default to a set of defaults defined in the Default Outage Rates CSV based off of rates in ERCOT.

For any remaining components not captured by the CSV defaults, such as lines, renewables, and storage, the outage rates are 0 and will never fail.