YT-22975: Per-row sequencer

Create per-tablet notion of a serialization type. This option can be changed only on unmounted dynamic table.
New per-row serialization type could be enabled only on sorted dynamic tables and could be useful only for shared write locks.
If per-row serialization type is enabled rows are serialized using per-row set of prepared and heap of serializing transactions on sorted store manager level.
Old serialization only allows transaction to be serialized whole using per-cell set of prepared and heap of serializing transactions which means that non-conflicting prepared transactions are interfering during serialization.
Most of changes are disabled as long as serialization type kept default (coarse).
But wire commands are now kept in memory in a parsed form and save to snapshot has another bound using timestamps.

* Changelog entry
Type: feature
Component: dynamic-tables

Add option to decrease serialization time by serializing transaction within each lock group in each row separately.
commit_hash:2c6bada00254a893c32b50e5b20d4d4bbbdd962b

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