Missing kernels for ordering with struct types

### Describe the enhancement requested

Currently, using order-related pyarrow compute functions like `min_max`, `array_sort_indices` on a StructArray raises due to missing kernel.
Since a struct type is an ordered sequence of values with a fixed number of fields, whenever all the field types are orderable there is a natural way to order struct values lexicographically. I think this would be useful functionality, and is not easy for users to do themselves.
EDIT: in fact, semantically this is similar to Table.sort_by - maybe some of the implementation could even be reused?

### Component(s)

Python