PERF-#6702: don't materialize axes when calling to_numpy

[anmyachev]

What do these changes do?

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• passes flake8 modin/ asv_bench/benchmarks scripts/doc_checker.py
• passes black --check modin/ asv_bench/benchmarks scripts/doc_checker.py
• signed commit with git commit -s
• Resolves Don't materialize axes when calling to_numpy #6702
• tests added and passing
• module layout described at docs/development/architecture.rst is up-to-date

[dchigarev]

the obvious thing to mention is that we are losing the ability to catch errors when index/columns are not materialized, but I guess it's okay?

[anmyachev]

the obvious thing to mention is that we are losing the ability to catch errors when index/columns are not materialized, but I guess it's okay?

Not really, when the index is not materialized, we calculate it from internal partitions, in this case the check does not make sense. We do the same for to_pandas.

[anmyachev]

@dchigarev let's merge it