Add example Variant values for primitive types TimeNTZ (Type ID 17) 'timestamp with timezone' (Type ID 18+19) and UUID (Type ID 20)

[alamb]

• Add example binary variant data and regeneration scripts #76 adds example variant binary values

Variant is a binary format similar to JSON but allows more types in its value fields.

At the time of writing, I could not figure out how to create variants with certain types using Apache Spark

-- TODO is not clear how to create the following types using Spark SQL
-- TODO TimeNTZ                    (Type ID 17)
-- TODO 'timestamp with timezone'  (Type ID 18)
-- TODO 'timestamp with time zone' (Type ID 19)
-- TODO 'UUID'                     (Type ID 20)

@emkornfield suggested in #76 (comment)

I think these were added after the spark implementation, so we likely need either a PR to spark or maybe Rust can take the lead once it has them done.

This ticket tracks adding examples for these 4 primitive types

[mapleFU]

Aha, seems this is not supported: https://github.com/apache/spark/blob/master/common/variant/README.md

[klion26]

This has been resolved by #92

[alamb]

Thank you @klion26 and @mapleFU