How to programmatically create a new Delta with complex types

[andrei-ionescu]

I'm want to create a new Delta table using delta-rs and I'm trying to create the needed schema based on the source dataset but I cannot create the following data types:

• SchemaTypeMap
• SchemaTypeArray

They don't have a new method implementation and their properties are not public.

What's the proper way to programatically create a Delta table using delta-rs with complex types like maps and arrays? Or, what's the proper way to create those two complex types?

[houqp]

let's focus the discussion in #513 :)