Add BitBuffer to vortex-buffer

[gatesn]

Pulled from #2456

This separates out the logic of adding the BitBuffer from using it. There are some outstanding performance issues before we can pick up #2456 again.

I added some benchmarks that highlight where we're slower than Arrow atm

[codecov]

Codecov Report

❌ Patch coverage is 34.74676% with 554 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.02%. Comparing base (46e2538) to head (467ea8a).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
vortex-buffer/src/bit/buf.rs	31.64%	162 Missing ⚠️
vortex-buffer/src/bit/unaligned.rs	31.40%	142 Missing ⚠️
vortex-buffer/src/bit/buf_mut.rs	52.04%	94 Missing ⚠️
vortex-buffer/src/bit/ops.rs	0.00%	81 Missing ⚠️
vortex-buffer/src/bit/aligned.rs	0.00%	64 Missing ⚠️
vortex-buffer/src/buffer.rs	73.33%	8 Missing ⚠️
vortex-buffer/src/bit/mod.rs	50.00%	3 Missing ⚠️

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