Updating Python SDK with new Rust core version

[elenagaljak-db]

What changes are proposed in this pull request?

WHAT:

• Migrated the Python SDK from a pure Python implementation to a Rust-backed implementation using PyO3 bindings
• Created Rust wrapper modules (sync_wrapper.rs, async_wrapper.rs, common.rs, auth.rs) that expose the
  core Rust SDK functionality to Python
• Implemented Python-compatible types: TableProperties, StreamConfigurationOptions, RecordType,
  AckCallback, HeadersProvider
• Added support for both sync and async Python APIs through separate wrapper modules
• Maintained backwards compatibility with the existing Python API surface

WHY:
The previous Python SDK duplicated logic from the Rust SDK, creating maintenance overhead and potential
inconsistencies. By wrapping the Rust SDK directly, we get:

1. Single source of truth: All core logic lives in the Rust SDK, eliminating duplication
2. Performance improvements: Native Rust implementation provides better throughput and lower latency
3. Type safety: Rust's type system catches errors at compile time
4. Easier maintenance: Python SDK automatically inherits bug fixes and features from Rust SDK
5. Consistent behavior: Sync and async Python APIs use the same underlying Rust implementation

The Python API remains unchanged for end users, ensuring a smooth migration path.

Local benchmark results:

ingest_record_offset

Record Size	Throughput
20 B	0.35 MB/s
220 B	3.86 MB/s
750 B	13.18 MB/s
10000 B	188.41 MB/s

ingest_record_no_wait

Record Size	Throughput
20 B	7.55 MB/s
220 B	74.28 MB/s
750 B	194.56 MB/s
10000 B	382.67 MB/s

pure python:

Record Size	Throughput
20 B	0.20 MB/s
220 B	2.13 MB/s
750 B	7.13 MB/s
10000 B	83.06 MB/s

How is this tested?

• 99 smoke tests pass, verifying API surface compatibility
• Proto generation tests verify descriptor handling
• Tested both sync and async SDK APIs
• Verified backwards compatibility with deprecated ingest_record method
• Confirmed TableProperties accepts protobuf descriptor objects as before
• Integration testing covered by comprehensive Rust SDK test suite

[teodordelibasic-db]

Looks quite good, I think we should just mention a few breaking changes.

[teodordelibasic-db]

Looks great!