feat(core): data deduplication

[ideoma]

Related questdb/roadmap#3

This PR adds functionality to enable insert deduplication on the storage level. With the syntax as

CREATE TABLE no_ts_dups_table (timestamp ts, l long) timestamps(ts) PARTITION BY DAY WAL DEDUPLICATE UPSERT KEYS(ts)

-- or
CREATE TABLE no_ts_dups_table (timestamp ts, l long) timestamps(ts) PARTITION BY DAY WAL DEDUP UPSERT KEYS(ts)

-- disabling
ALTER TABLE no_ts_dups_table DEDUP DISABLE

-- re-enabling
ALTER TABLE no_ts_dups_table DEDUP UPSERT KEYS(ts)

The deduplication in this PR is limited to the dedicated timestamp column only and is supported only for WAL tables. Deduplication will replace all matching rows with the latest version from the insert. For example given the table

ts	d
08:00	1
08:00	2
09:00	3

and inserts (in one ore several commits)

ts	d
08:00	4
08:00	5
09:00	6
10:00	7.
10:00	8

The result will be

ts	d
08:00	5
08:00	5
09:00	6
10:00	8

[ideoma]

[PR Coverage check]

😍 pass : 373 / 404 (92.33%)

file detail

	path	covered line	new line	coverage
🔵	io/questdb/cairo/wal/seq/MetadataServiceStub.java	0	2	00.00%
🔵	io/questdb/PropServerConfiguration.java	0	1	00.00%
🔵	io/questdb/cairo/DefaultCairoConfiguration.java	0	1	00.00%
🔵	io/questdb/cairo/O3OpenColumnJob.java	2	3	66.67%
🔵	io/questdb/cairo/TableWriterMetadata.java	11	14	78.57%
🔵	io/questdb/cairo/O3PartitionJob.java	28	35	80.00%
🔵	io/questdb/cairo/TableWriter.java	103	114	90.35%
🔵	io/questdb/griffin/SqlCompiler.java	48	51	94.12%
🔵	io/questdb/griffin/engine/ops/AlterOperation.java	17	18	94.44%
🔵	io/questdb/griffin/SqlParser.java	39	40	97.50%
🔵	io/questdb/griffin/engine/ops/AlterOperationBuilder.java	15	15	100.00%
🔵	io/questdb/cairo/wal/WalWriterMetadata.java	1	1	100.00%
🔵	io/questdb/cairo/wal/WalWriter.java	1	1	100.00%
🔵	io/questdb/cairo/TableReaderMetadata.java	3	3	100.00%
🔵	io/questdb/cutlass/text/CairoTextWriter.java	1	1	100.00%
🔵	io/questdb/tasks/O3CallbackTask.java	2	2	100.00%
🔵	io/questdb/cairo/wal/seq/TableSequencerImpl.java	1	1	100.00%
🔵	io/questdb/cairo/O3CopyJob.java	12	12	100.00%
🔵	io/questdb/cairo/wal/seq/SequencerMetadata.java	1	1	100.00%
🔵	io/questdb/cairo/TableUtils.java	6	6	100.00%
🔵	io/questdb/cairo/O3CallbackJob.java	1	1	100.00%
🔵	io/questdb/cairo/security/ReadOnlySecurityContext.java	1	1	100.00%
🔵	io/questdb/cutlass/text/ParallelCsvFileImporter.java	1	1	100.00%
🔵	io/questdb/std/Vect.java	7	7	100.00%
🔵	io/questdb/cairo/TableColumnMetadata.java	7	7	100.00%
🔵	io/questdb/cutlass/line/udp/LineUdpParserImpl.java	1	1	100.00%
🔵	io/questdb/cairo/AbstractRecordMetadata.java	1	1	100.00%
🔵	io/questdb/cutlass/line/tcp/TableStructureAdapter.java	1	1	100.00%
🔵	io/questdb/griffin/model/CreateTableModel.java	5	5	100.00%
🔵	io/questdb/cairo/GenericRecordMetadata.java	2	2	100.00%
🔵	io/questdb/griffin/SqlKeywords.java	51	51	100.00%
🔵	io/questdb/cairo/security/AllowAllSecurityContext.java	1	1	100.00%
🔵	io/questdb/tasks/O3PartitionTask.java	3	3	100.00%