Feat/trie sync optimizations

[ssd04]

Reasoning behind the pull request

• Improve trie sync process with parallelization

Proposed changes

• Sync main trie and data tries in parallel
• Avoid creating a trie structure and reading all leaves from it; sync data tries while syncing main trie

Testing procedure

• Standard testing procedure

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?

[codecov]

Codecov Report

Patch coverage: 76.03% and project coverage change: +0.11 🎉

Comparison is base (d89e5d3) 79.79% compared to head (2cfa72a) 79.91%.

❗ Current head 2cfa72a differs from pull request most recent head 5d6daec. Consider uploading reports for the commit 5d6daec to get more accurate results

Additional details and impacted files

@@              Coverage Diff              @@
##           rc/v1.6.0    #5291      +/-   ##
=============================================
+ Coverage      79.79%   79.91%   +0.11%     
=============================================
  Files            691      695       +4     
  Lines          89197    90009     +812     
=============================================
+ Hits           71179    71932     +753     
+ Misses         12888    12872      -16     
- Partials        5130     5205      +75     

Impacted Files	Coverage Δ
common/channels.go	57.14% <0.00%> (-42.86%)	⬇️
common/trie.go	38.46% <0.00%> (-44.88%)	⬇️
state/baseAccount.go	62.96% <0.00%> (-7.41%)	⬇️
state/errors.go	25.00% <ø> (ø)
storage/database/db.go	66.66% <0.00%> (-33.34%)	⬇️
storage/storageunit/storageunit.go	100.00% <ø> (ø)
trie/keyBuilder/disabledKeyBuilder.go	77.77% <0.00%> (-22.23%)	⬇️
trie/keyBuilder/keyBuilder.go	91.30% <0.00%> (-8.70%)	⬇️
trie/leafNode.go	75.52% <ø> (-3.18%)	⬇️
trie/node.go	84.50% <ø> (-1.96%)	⬇️
... and 56 more

... and 6 files with indirect coverage changes

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[gabi-vuls]

System test passed.
@@ Log scanner @@

trie-sync-optimizations

================================================================================

• Known Warnings 9
• New Warnings 2
• Known Errors 0
• New Errors 0
• Panics 0
  ================================================================================
• block hash does not match 8568
• wrong nonce in block 3494
• miniblocks does not match 0
• num miniblocks does not match 0
• miniblock hash does not match 0
• block bodies does not match 0
• receipts hash missmatch 0
  ================================================================================
• No jailed nodes on the testnet
  ================================================================================