feat(resharding): flat storage resharding mvp #7043

Job	Run time
Backward Compatibility	10m 57s
Cargo Nextest (Linux)	15m 33s
Protobuf Backward Compatibility	9s
Cargo Nextest (Linux Nightly)	15m 46s
Cargo Nextest (MacOS)	11m 46s
Cargo Deny	32s
Cargo Audit	24s
Cargo Clippy	8m 17s
Cargo Fmt	21s
Non-default Configuration Builds	1m 23s
Themis	38s
Unused Dependencies	6m 39s
Rust Doctests	11m 28s
Lychee Lints	12s
Protocol Schema	14m 27s
Database Migration	11m 27s
Genesis Changes	9m 21s
Sanity Checks	6m 25s
Style	43s
Upgradability	11m 34s
Windows check for building public libraries	5m 19s
Generate Coverage Artifact (unit, unit)	2m 8s
Upload Coverage	28s
Generate Coverage Artifact (integration, unit integration)	3m 23s
	2h 29m 20s

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