This commit contains some parts of https://github.com/ton-blockchain/ton/tree/accelerator
This is auxiliary code that mostly does not change node behavior.
1) Semiprivate overlays and other improvements in overlays code
2) Rename actual_min_split -> monitor_min_split, fix building shard overlays
3) Loading block candidates by block id from DB, fix accept_block after validator restart
4) Cells: ProofStorageStat and changes in CellUsageTree
5) Remove some unused code, other minor changes
* Deferred messages and msg metadata
* Store out msg queue size in state
* Add checks for queue processing
1. Collator must process at least one message from AccountDispatchQueue (unless block is full)
2. The first message from a transaction is not counted, it cannot be deferred (unless AccountDispatchQueue is not empty)
* Return msg metadata from LS in listBlockTransactions[Ext]
* Enable new features by capabilities
* Changes in deferred messages
* Process deferred messages via new_msgs in collator
* Rework setting deferred_lt, bring back check_message_processing_order, check order of deferred_lt in validator
* Use have_unprocessed_account_dispatch_queue_ in collator
* Fix setting transaction lt for deferred messages
* Fix lite-client compilation error
* Changes in process_dispatch_queue, rename deferred_lt -> emitted_lt
* Fix compilation error
* Use uint64 for msg queue size
* Add liteServer.getBlockOutMsgQueueSize
* Fix compilation error
* Fix typos in comments
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Co-authored-by: SpyCheese <mikle98@yandex.ru>
