[DE-801] Fix invoice events structure

[maciej-nedza]

• Remove default collection method value
• Reorganize Invoice Event structure:
  • Invoice Event is now union type
  • Invoice Event Data is no longer union type. Each Invoice Event has it's own invoice_data with a concrete type
• Remove some redundant models
• Set usage ids, events ids and invoice event ids as longs,
• Set Invoice Event id to long
• Add new invoice event data types
• Add handle parameter for create product family request body
• Add in_use query parameter for listing subscription components

[swarmia]

✅  Linked to Task DE-801 · release SDKs 3.0
➡️  Part of Epic DE-770 · SDK 3.0.0 Improvements