Node recovery conductor testing

[devyetii]

Fixes

Add conductor tests for the cases when providers crash then come back up clean.

Changes

Need to be mentioned in CHANGELOG.md?

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• blobber:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Merging #2797 (70e9a43) into sprint-1.11 (b3c28a6) will decrease coverage by 0.05%.
Report is 48 commits behind head on sprint-1.11.
The diff coverage is 18.13%.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

@@               Coverage Diff               @@
##           sprint-1.11    #2797      +/-   ##
===============================================
- Coverage        28.80%   28.76%   -0.05%     
===============================================
  Files              395      397       +2     
  Lines            65842    66009     +167     
===============================================
+ Hits             18967    18985      +18     
- Misses           44581    44726     +145     
- Partials          2294     2298       +4     

Flag	Coverage Δ
Unit-Tests	28.76% <18.13%> (-0.05%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
code/go/0chain.net/chaincore/chain/config.go	21.49% <100.00%> (+0.36%)	⬆️
code/go/0chain.net/core/config/config.go	0.00% <ø> (ø)
code/go/0chain.net/sharder/chain.go	3.71% <ø> (-0.21%)	⬇️
code/go/0chain.net/sharder/healthcheck_handler.go	100.00% <ø> (ø)
code/go/0chain.net/sharder/stats.go	89.38% <ø> (-0.40%)	⬇️
...ode/go/0chain.net/smartcontract/dbs/event/block.go	7.24% <100.00%> (ø)
code/go/0chain.net/smartcontract/storagesc/sc.go	42.02% <100.00%> (+0.62%)	⬆️
code/go/0chain.net/smartcontract/zcnsc/nodes.go	33.33% <100.00%> (+1.73%)	⬆️
code/go/0chain.net/sharder/protocol_block.go	0.80% <0.00%> (-0.01%)	⬇️
code/go/0chain.net/sharder/protocol_block_main.go	0.00% <0.00%> (ø)
... and 5 more

... and 1 file with indirect coverage changes

[dabasov]

lgtm