* Implement Pruner.
* Put pruner in a crate.
* Fix clippy.
* Add rpc zgs_getShardConfig.
* Fix.
* Increase wait time.
* Add pruner_test and use max_num_chunks instead of size_limit.
* Store shard config for peers and choose sync peers accordingly.
* Add test and fix sync.
* Fix clippy and test.
* Fix some ut.
* Add AnnounceShardConfig gossip and fix tests.
* Add sharded tx finalize check in LogManager.
* Try,
* Rename.
* Longer timeout for mine_test.
* Save test logs.
* replace filter with eth_getLogs
* update log
* store block history into db
* fix lints error
* add free disk step
* set max worker to 3
* resolve comments and refact code
* resolve comments
* set max-workers to 4
* set max-workers to 3