Vastdb

Added
- Support date & timestamp predicate pushdown [25]

Fixed
- Add missing `requirements.txt` file to released tarball [47]

Added
- Transactions are implemented using [context managers](https://docs.python.org/3/library/stdtypes.html#typecontextmanager)
- Database entities are derived from a specific transaction
- Predicate pushdown is using [ibis](https://ibis-project.org/)-like expressions
- Public SDK [test suite](vastdb/tests/)
- Internal CI with Python 3.9 - 3.12
- Using [`ruff`](https://github.com/astral-sh/ruff) for linting and code formatting
- Improved [`README.md`](README.md) with new API examples

Removed

- Old SDK classes and methods are deprecated

Added
- Allow changing default max list_columns page size [43]

Fixed
- Fixing insert function to use the correct tx while listing columns [42]

Added
- Support retrieving row IDs via `VastdbApi.query()` [31]

Fixed
- Fixed several functions that didn't use the correct txid [30]
- Fix graceful cancellation for `VastdbApi.query_iterator()` [33]

Removed
- Remove `vast_protobuf` package and `protobuf` dependency [29]

Fixed
- Support latest Python (3.11+) by not requiring too old dependencies. [16]

Added
- Created a CHANGELOG

Fixed
- Wait until all files are processed during import
- Sync with internal `api.py` code