Add support for huggingface datasets to vortex-python

[robert3005]

Add IterableDataset implementation backed by vortex files. Majority of the logic in this pr deal with adapting hugging face options into compatible vortex options

[codspeed-hq]

Merging this PR will improve performance by 11.87%

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 5 improved benchmarks
✅ 1701 untouched benchmarks

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Simulation	bitwise_not_vortex_buffer_mut[128]	215.3 ns	186.1 ns	+15.67%
⚡	Simulation	bitwise_not_vortex_buffer_mut[1024]	275.6 ns	246.4 ns	+11.84%
⚡	Simulation	encode_varbin[(1000, 8)]	160.6 µs	144.7 µs	+10.98%
⚡	Simulation	encode_varbin[(1000, 4)]	159.2 µs	144.1 µs	+10.48%
⚡	Simulation	encode_varbin[(1000, 2)]	158.5 µs	143.5 µs	+10.47%

Tip

Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing rk/hfd (30b65d7) with develop (0c7e0ff)}