Determining driver specific type name for an Arrow type `CREATE TABLE`/`ALTER TABLE`

### What feature or improvement would you like to see?

Hi ADBC team,

I’m working on implementing `CREATE TABLE`, and to generate the correct SQL from Arrow types it would be really helpful to have a function that maps an Arrow type to the driver’s native type name - something suitable for use in CREATE TABLE or ALTER TABLE.

Thanks so much,

Rusty

The issue identifies no files, tests, or entry points. First clarify which ADBC drivers and Arrow types the mapping must cover, then define the API and acceptance cases for CREATE TABLE and ALTER TABLE type names; done means the scope and driver-specific behavior are agreed and tested.

Written by the indexing model from the issue text.