* close goruotines
* fix using defer
* close pm managers a bit later
* fmt
* finalizer for in-mem db
* after cr
* revert finalizer
Co-authored-by: alex.sharov <AskAlexSharov@gmail.com>
* store stageData correctly
* integration: use State of sync, use stage data, don't skip persistent steps even if they complete before interruption
* reset_state: clear unwind stages info
* stage4: stop where previous stage stopped, print to logs digits which represent what exactly is in DB, rename variable 'nextBlockNumber' to 'stateProgress'
* rebase to master
* simplify chainconfig
* try increase sleep time on ci
* try increase sleep time on ci
* try increase sleep time on ci
* try increase sleep time on ci
* cmp to reference db if --reference_chaindata provided
* graceful shutdown
* add ./cmd/integration to makefile
* add interruption support for different stages
* don't compare errors directly
```
go run ./cmd/integration reset --chaindata=...
go run ./cmd/integration state_stages -h
go run ./cmd/integration state_stages --chaindata=... --verbosity=3 --block=2_000_000 --unwind=10 --unwind_every=1_000
```
Also, it inherits flags from geth:
```
--pprof.cpuprofile=./cpu.out // to file
--pprof --pprof.port=6060 // launch pprof server
--metrics // sends to prometheus
```
