Import/export geoarrow.wkb extension type from/to GEOMETRY

[paleolimbot]

This PR implements conversion between DuckDB GEOMETRY and geoarrow.wkb when importing or exporting Arrow using duckdb/duckdb#15285 .

# build/duckdb -unsigned
v1.1.4-dev4679 0024e5d4be
Enter ".help" for usage hints.

# Because there's no good way to test this from a shell without an Arrow IPC reader
D FORCE INSTALL '/Users/dewey/gh/duckdb-nanoarrow/build/extension/nanoarrow/nanoarrow.duckdb_extension';
D LOAD httpfs;
D LOAD nanoarrow;

# Registration is opt-in
D SELECT * FROM read_arrow_stream2('https://github.com/geoarrow/geoarrow-data/releases/download/v0.1.0/ns-water-basin_point-wkb.arrow');
Not implemented Error:
Arrow Extension with configuration:
Extension Name: geoarrow.wkb
 not yet registered
D CALL register_geoarrow_extensions();
┌────────────┐
│ registered │
│  boolean   │
├────────────┤
│ true       │
└────────────┘
D SELECT * FROM read_arrow_stream2('https://github.com/geoarrow/geoarrow-data/releases/download/v0.1.0/ns-water-basin_point-wkb.arrow');

# Should work but doesn't!
INTERNAL Error:
Attempted to dereference unique_ptr that is NULL!

Stack Trace:

0        _ZN6duckdb9Exception6ToJSONENS_13ExceptionTypeERKNSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEE + 448
1        _ZN6duckdb9ExceptionC2ENS_13ExceptionTypeERKNSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEE + 504
2        _ZN6duckdb17InternalExceptionC2ERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 252
3        _ZN6duckdb17InternalExceptionC1ERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 100
4        _ZN6duckdb10unique_ptrINS_13ArrowTypeInfoENSt3__114default_deleteIS1_EELb1EE13AssertNotNullEb + 528
5        _ZNK6duckdb10unique_ptrINS_13ArrowTypeInfoENSt3__114default_deleteIS1_EELb1EEptEv + 156
6        _ZNK6duckdb9ArrowType11GetTypeInfoINS_15ArrowStringInfoEEERKT_v + 184
7        _ZN6duckdbL17ArrowToDuckDBBlobERNS_6VectorER10ArrowArrayRKNS_19ArrowScanLocalStateEyRKNS_9ArrowTypeExx + 732
8        _ZN6duckdbL19ColumnArrowToDuckDBERNS_6VectorER10ArrowArrayRNS_19ArrowArrayScanStateEyRKNS_9ArrowTypeExPNS_12ValidityMaskEy + 27196
9        _ZN6duckdbL19ColumnArrowToDuckDBERNS_6VectorER10ArrowArrayRNS_19ArrowArrayScanStateEyRKNS_9ArrowTypeExPNS_12ValidityMaskEy + 2568
10       _ZN6duckdb18ArrowTableFunction13ArrowToDuckDBERNS_19ArrowScanLocalStateERKNSt3__113unordered_mapIyNS_10shared_ptrINS_9ArrowTypeELb1EEENS3_4hashIyEENS3_8equal_toIyEENS3_9allocatorINS3_4pairIKyS7_EEEEEERNS_9DataChunkEyby + 7172
11       _ZN6duckdb18ArrowTableFunction17ArrowScanFunctionERNS_13ClientContextERNS_18TableFunctionInputERNS_9DataChunkE + 4308
12       _ZN6duckdb13ext_nanoarrow12_GLOBAL__N_116ReadArrowStream24ScanERNS_13ClientContextERNS_18TableFunctionInputERNS_9DataChunkE + 244

Closes #153.