speed up tables manager in schemeshard

[ivanmorozov333]

use hash instead of set to prevent TPathId slow comparision

• Performance improvement

[github-actions]

⚪ 2024-07-30 06:10:05 UTC Pre-commit check for 390cdc3 has started.
⚪ 2024-07-30 06:12:58 UTC Check linux-x86_64-release-asan is running...
🔴 2024-07-30 08:25:23 UTC Some tests failed, follow the links below.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
9691	9109	0	83	324	175

🟢 2024-07-30 08:26:21 UTC Build successful.
🟢 2024-07-30 08:27:15 UTC ydbd size 5.2 GiB changed* by +32.4 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 75ab2b2	merge: 390cdc3	diff	diff %
ydbd size	5 570 361 072 Bytes	5 570 394 272 Bytes	+32.4 KiB	+0.001%
ydbd stripped size	1 199 093 424 Bytes	1 199 099 760 Bytes	+6.2 KiB	+0.001%

^{*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]

⚪ 2024-07-30 06:10:18 UTC Pre-commit check for 390cdc3 has started.
⚪ 2024-07-30 06:13:20 UTC Check linux-x86_64-relwithdebinfo is running...
🟡 2024-07-30 07:50:08 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
13987	12638	0	1	1326	22

⚪ 2024-07-30 07:51:43 UTC Failed tests rerun (try 2) linux-x86_64-relwithdebinfo is running...
🟢 2024-07-30 07:59:23 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
19 (only retried tests)	11	0	0	0	8

🟢 2024-07-30 08:00:31 UTC Build successful.
🟢 2024-07-30 08:01:16 UTC ydbd size 8.1 GiB changed* by +60.5 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 75ab2b2	merge: 390cdc3	diff	diff %
ydbd size	8 677 212 552 Bytes	8 677 274 496 Bytes	+60.5 KiB	+0.001%
ydbd stripped size	471 842 208 Bytes	471 844 704 Bytes	+2.4 KiB	+0.001%

^{*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]

⚪ 2024-07-30 06:10:22 UTC Pre-commit check for 390cdc3 has started.
⚪ 2024-07-30 06:13:21 UTC Check linux-x86_64-release-clang14 is running...
🟢 2024-07-30 06:23:12 UTC Build successful.