OpenAPI Schema Formats

This tests the OpenAPI schema formats feature of Astra. It is a simple example of how to use OpenAPI schema formats to create a new format that can be used. This tests:

• Creating a custom date-time format for the time.Time type, and uuid.UUID type from google for uuid format.
• int32 is the default format for int types
• int64 is respected for int64 types
• float32 is the default format for float32 types
• float64 is respected for float64 types
• Accounted for all other data types in formatTypes.go