Add reinit step for build vector index

[MBkkt]

Main loop for vector index build looks like:

shards = mainTable shards;
for (int level = 0; level < neededLevels; ++level) {
   outputTable = postingTable;
   if ((level + 1) != neededLevels) {
      outputTable = tmp level % 2 table
      outputTable.clear()
   }
   for (int parent = 0; parent < k^level; ++parent) {
    if (parent is local for some shard) {
      run LocalKmeans
    } else {
      // for all shards responsible for this parent
      run SampleK
      n times run RecomputeEmbeddings
      run ReshuffleEmbeddings
    }
   }
   shards = outputTable shards;
}

This PR implements this part

for (int level = 0; level < neededLevels; ++level) {
   outputTable = postingTable;
   if ((level + 1) != neededLevels) {
      outputTable = tmp level % 2 table
      outputTable.clear()
   }

It's about make implicit cycle over levels and clear temprorary output tables.
Also we know expected counted of shards for temprorary tables very well, so we also specifying partition

[github-actions]

⚪ 2024-09-17 11:01:04 UTC Pre-commit check linux-x86_64-release-asan for d595e3f has started.
⚪ 2024-09-17 11:01:08 UTC Artifacts will be uploaded here
⚪ 2024-09-17 11:04:04 UTC ya make is running...
🔴 2024-09-17 13:03:45 UTC Some tests failed, follow the links below.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10541	10123	0	69	304	45

🟢 2024-09-17 13:04:43 UTC Build successful.
🟢 2024-09-17 13:05:21 UTC ydbd size 5.6 GiB changed* by +97.1 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 238a753	merge: d595e3f	diff	diff %
ydbd size	6 045 711 792 Bytes	6 045 811 208 Bytes	+97.1 KiB	+0.002%
ydbd stripped size	1 513 156 368 Bytes	1 513 179 600 Bytes	+22.7 KiB	+0.002%

^{*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]

⚪ 2024-09-17 11:01:09 UTC Pre-commit check linux-x86_64-relwithdebinfo for d595e3f has started.
⚪ 2024-09-17 11:01:18 UTC Artifacts will be uploaded here
⚪ 2024-09-17 11:04:10 UTC ya make is running...
🟡 2024-09-17 12:13:24 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39856	34153	0	1	5665	37

⚪ 2024-09-17 12:16:48 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-09-17 12:27:29 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
275 (only retried tests)	179	0	0	7	89

🟢 2024-09-17 12:27:39 UTC Build successful.
🟡 2024-09-17 12:28:16 UTC ydbd size 8.4 GiB changed* by +710.9 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 8dfd693	merge: d595e3f	diff	diff %
ydbd size	9 030 406 616 Bytes	9 031 134 624 Bytes	+710.9 KiB	+0.008%
ydbd stripped size	488 733 032 Bytes	488 772 264 Bytes	+38.3 KiB	+0.008%

^{*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]

⚪ 2024-09-17 11:01:09 UTC Pre-commit check linux-x86_64-release-clang14 for d595e3f has started.
⚪ 2024-09-17 11:01:19 UTC Artifacts will be uploaded here
⚪ 2024-09-17 11:04:12 UTC ya make is running...
🟢 2024-09-17 11:21:48 UTC Build successful.

[github-actions]

⚪ 2024-09-20 12:07:22 UTC Pre-commit check linux-x86_64-release-clang14 for 711aae9 has started.
⚪ 2024-09-20 12:08:05 UTC Artifacts will be uploaded here
⚪ 2024-09-20 12:11:36 UTC ya make is running...
🟢 2024-09-20 12:56:41 UTC Build successful.

[github-actions]

⚪ 2024-09-20 12:07:26 UTC Pre-commit check linux-x86_64-relwithdebinfo for 711aae9 has started.
⚪ 2024-09-20 12:07:30 UTC Artifacts will be uploaded here
⚪ 2024-09-20 12:10:42 UTC ya make is running...
🟡 2024-09-20 13:51:48 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
41274	35717	0	4	5456	97

⚪ 2024-09-20 13:55:19 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-09-20 14:05:52 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
110 (only retried tests)	22	0	0	0	88

🟢 2024-09-20 14:05:59 UTC Build successful.
🟡 2024-09-20 14:06:42 UTC ydbd size 8.4 GiB changed* by +156.1 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 1d31583	merge: 711aae9	diff	diff %
ydbd size	9 042 683 432 Bytes	9 042 843 248 Bytes	+156.1 KiB	+0.002%
ydbd stripped size	489 300 104 Bytes	489 306 120 Bytes	+5.9 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]

⚪ 2024-09-20 12:17:11 UTC Pre-commit check linux-x86_64-release-asan for 711aae9 has started.
⚪ 2024-09-20 12:17:51 UTC Artifacts will be uploaded here
⚪ 2024-09-20 12:21:57 UTC ya make is running...
🔴 2024-09-20 14:50:20 UTC Some tests failed, follow the links below.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11904	11506	0	65	282	51

🟢 2024-09-20 14:51:25 UTC Build successful.
🟡 2024-09-20 14:52:02 UTC ydbd size 5.6 GiB changed* by +142.0 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 1d31583	merge: 711aae9	diff	diff %
ydbd size	6 061 096 568 Bytes	6 061 242 016 Bytes	+142.0 KiB	+0.002%
ydbd stripped size	1 516 186 096 Bytes	1 516 213 104 Bytes	+26.4 KiB	+0.002%

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