Recreate trie from epoch

[andreibancioiu]

Description of the reasoning behind the pull request (what feature was missing / how the problem was manifesting itself / what was the motive behind the refactoring)

• Currently, RecreateTrie() for a given epoch is not supported. Therefore, historical balances lookup is limited to the configured active persisters.
• Related to: https://github.com/ElrondNetwork/elrond-go/pull/4386

Proposed Changes

• Implement RecreateTrieFromEpoch, via a new, custom trieStorageManager: trieStorageManagerInEpoch.
• Optimize the triePruningStorer.GetFromEpoch() to not automatically close an opened persister (similar to how fullHistoryPruningStorer is implemented).
• Additionally, the scheduled SCRs unit is configured to use a fullHistoryPruningStorer - in case of full history observers etc. This unit is used in the current implementation of historical lookup.

Testing procedure

• Similar to https://github.com/ElrondNetwork/elrond-go/pull/4386. Though, all historical queries should work (no key not found errors etc.)

[codecov-commenter]

Codecov Report

Merging #4388 (c87bb30) into rc/2022-july (ec5c6e2) will increase coverage by 0.02%. The diff coverage is 83.80%.

:exclamation: Current head c87bb30 differs from pull request most recent head 071afe2. Consider uploading reports for the commit 071afe2 to get more accurate results

@@               Coverage Diff                @@
##           rc/2022-july    #4388      +/-   ##
================================================
+ Coverage         73.88%   73.91%   +0.02%     
================================================
  Files               675      676       +1     
  Lines             86783    86829      +46     
================================================
+ Hits              64117    64177      +60     
+ Misses            17872    17858      -14     
  Partials           4794     4794              

Impacted Files	Coverage Δ
node/nodeLoadAccounts.go	88.29% <ø> (ø)
process/txsimulator/wrappedAccountsDB.go	70.83% <0.00%> (-3.08%)	:arrow_down:
state/accountsDBApi.go	94.69% <0.00%> (-1.71%)	:arrow_down:
storage/factory/pruningStorerFactory.go	0.00% <0.00%> (ø)
state/accountsDBApiWithHistory.go	92.85% <71.42%> (-1.94%)	:arrow_down:
trie/trieStorageManagerInEpoch.go	80.55% <80.55%> (ø)
trie/trieStorageManagerWithoutPruning.go	86.66% <85.71%> (ø)
trie/patriciaMerkleTrie.go	70.95% <87.50%> (+0.33%)	:arrow_up:
common/holders/rootHashHolder.go	87.50% <100.00%> (+1.78%)	:arrow_up:
state/accountsDB.go	78.46% <100.00%> (+0.06%)	:arrow_up:
... and 9 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.