Summit Series

• null values now compared in PrimitiveComparer. Where relevant, null is smaller than non null.
• OptionalDouble and OptionalDecimal values are final.
• DoubleCollection, DecimalCollection and ObjectCollection constructors take Iterable instead of List. Constructors are private and collections are build with of to match SObjectCollection.
• Directory structure was simplified to match an empty sf (sfdx) template.
• Github action has been updated to work.