Add Arrow Map roundtrip support

[AdamGS]

Rationale for this change

• Closes: #000

What changes are included in this PR?

What APIs are changed? Are there any user-facing changes?

[codspeed-hq]

Merging this PR will degrade performance by 5.46%

⚡ 2 improved benchmarks
❌ 2 regressed benchmarks
✅ 1826 untouched benchmarks
⏩ 43 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	decompress[u32, (1000, 16)]	44.6 µs	57.7 µs	-22.65%
❌	Simulation	decode_varbin[(1000, 2)]	62 µs	78 µs	-20.6%
⚡	Simulation	fsl_large	253.2 µs	214.3 µs	+18.14%
⚡	Simulation	search_index_in_range_chunked	6.3 ms	5.8 ms	+10.1%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing adamg/maptype-4 (49a477c) with develop (3d0c124)²}

Footnotes

1. 43 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on develop (695e068) during the generation of this report, so 3d0c124 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩