* Accelerator: partial fullnodes
1) Node can monitor a subset of shards
2) New archive slice format (sharded)
3) Validators are still required to have all shards
4) Support partial liteservers in lite-client, blockchain explorer, tonlib
5) Proxy liteserver
* Fix compilation error
* Option "--disable-ext-msg-broadcast"
* "Get shard out queue size" query
* Move disabling ext msg broadcasts from command-line arguments to config
* Fix compilation error
* Asynchronous store_cell and gc in celldb
* Make GC in celldb work evenly over time
* Increase timeouts for downloading blocks
* Reuse blocks from previous rounds in validator session
* Use Rldp2 in FullNode for downloading persistent states and archives
* Improve logs in download-archive-slice and download-state
* Decrease delay between serializing shards
* Make CellDbIn::load_cell synchronous to avoid interfering with store_cell
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Co-authored-by: SpyCheese <mikle98@yandex.ru>
1. Updated block header, proofs now contain more data
Notice, that old proofs may become invalid in the future
2. Fixed message routing
3. Fixed block creator id in block header
4. Support for full proofs in tonlib
5. Support for partial state download
6. Some other bugfixes
