feat(python): integrate with lance namespace (#2599)

This PR integrates `lancedb` with `lance-namespace` so that users can
use LanceDB client to access Lance tables in any catalog services. In
general, we expect most of the logic to be delegated to the existing
`LanceDBConnection` and `LanceTable`, but the namespace implemenation
will control how table is created, dropped, and describe where the table
is stored with any related storage options like access credentials.

The implementation currently only supports a 1 level namespace that
directly contains tables. We will introduce nested namespace support in
a separated PR.

Users are expected to use it in the following way:

```python
>>> import lancedb
>>> import pyarrow as pa
>>> # Connect using GlueNamespace
>>> db = lancedb.connect_namespace("glue", {"catalog_id": "123456789012"})
>>> # Create a table with schema
>>> schema = pa.schema([
...     pa.field("id", pa.int64()),
...     pa.field("vector", pa.list_(pa.float32(), 2))
... ])
>>> table = db.create_table("my_table", schema=schema)
>>> # List tables
>>> db.table_names()
['my_table']
```

python/pyproject.toml

@@ -10,6 +10,7 @@ dependencies = [
     "pyarrow>=16",
     "pydantic>=1.10",
     "tqdm>=4.27.0",
+    "lance-namespace==0.0.6"
 ]
 description = "lancedb"
 authors = [{ name = "LanceDB Devs", email = "dev@lancedb.com" }]