Unsupported data type: Map

Is the Map type currently not supported?
I created a field of Map type, but received an error message:

```rust
Field::new_map(
"string_tags",
"entries",
Field::new("key", DataType::Utf8, true),
Field::new("value", DataType::Utf8, true),
false,
true,
)
```

error: 
```test
Unsupported data type: Map
```

lance-core-0.25.0