Implement runtime flags codegen in C++

[snaury]

Changelog entry

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Additional information

Python binaries with complex dependencies cannot be used in cmake export codegen. Reimplement codegen in C++.

See #9748.

[github-actions]

⚪ 2024-10-22 11:43:09 UTC Pre-commit check linux-x86_64-relwithdebinfo for 8ca4a23 has started.
⚪ 2024-10-22 11:43:43 UTC Artifacts will be uploaded here
⚫ 2024-10-22 11:47:22 UTC Check cancelled

[github-actions]

⚪ 2024-10-22 11:45:18 UTC Pre-commit check linux-x86_64-release-asan for 8ca4a23 has started.
⚫ 2024-10-22 11:47:21 UTC Check cancelled

[github-actions]

⚪ 2024-10-22 11:48:03 UTC Pre-commit check linux-x86_64-relwithdebinfo for 1437f53 has started.
⚪ 2024-10-22 11:48:07 UTC Artifacts will be uploaded here
⚪ 2024-10-22 11:51:40 UTC ya make is running...
🟡 2024-10-22 13:15:32 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
41505	35905	0	1	5502	97

⚪ 2024-10-22 13:19:05 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-10-22 13:30:49 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
97 (only retried tests)	4	0	0	0	93

🟢 2024-10-22 13:30:56 UTC Build successful.
🟢 2024-10-22 13:31:15 UTC ydbd size 2.8 GiB changed* by 0 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: f7709b6	merge: 1437f53	diff	diff %
ydbd size	3 012 001 568 Bytes	3 012 001 568 Bytes	0 Bytes	0.000%
ydbd stripped size	478 074 552 Bytes	478 074 552 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-10-22 11:51:23 UTC Pre-commit check linux-x86_64-release-asan for 1437f53 has started.
⚪ 2024-10-22 11:51:34 UTC Artifacts will be uploaded here
⚪ 2024-10-22 11:54:53 UTC ya make is running...
🟡 2024-10-22 13:33:39 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11660	11479	0	41	40	100

🟢 2024-10-22 13:34:40 UTC Build successful.
🟢 2024-10-22 13:35:11 UTC ydbd size 5.7 GiB changed* by -96 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: f7709b6	merge: 1437f53	diff	diff %
ydbd size	6 099 054 144 Bytes	6 099 054 048 Bytes	-96 Bytes	-0.000%
ydbd stripped size	1 522 369 648 Bytes	1 522 369 584 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}