Print statement for codegen backends

[siyi-hu]

Add a print statement to c++ and numba backends to print out the content of input arguments. Solving issue #194 .

[codspeed-hq]

Merging this PR will degrade performance by 11.99%

⚠️ 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.

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

❌ 3 regressed benchmarks
✅ 29 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	WallTime	test_ops_binary[interpret_galley-multiply]	786.2 ms	895.3 ms	-12.19%
❌	WallTime	test_ops_binary[interpret_galley-add]	787 ms	894.6 ms	-12.03%
❌	WallTime	test_ops_reduction[interpret_galley-sum]	419.5 ms	475.4 ms	-11.76%

Tip

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

---

_{Comparing sh/print-for-codegen (965f79d) with main (64775fa)}

[willow-ahrens]

I'm not sure about this. It seems like extra complexity, and nobody has asked for it in a while.