Changes tracker

[turuslan]

Referenced issues

#1283

Description of the Change

Trie changes from Core_execute_block and Core_initialize_block+BlockBuilder_apply_extrinsic+BlockBuilder_finalize_block are tracked separately.
New tracker is created for each invocation and passed as argument.

Tracker was singleton before, so couldn't work from multiple threads.

• BabeImpl
  • ProposerImpl
    • BlockBuilderFactoryImpl
      • CoreImpl
    • BlockBuilderImpl
• BlockExecutorImpl
  • CoreImpl
• Executor
  • TrieStorageProviderImpl
    • TrieStorageImpl

Benefits

Can execute multiple blocks simultaneously.

Possible Drawbacks

Usage Examples or Tests

Alternate Designs

Replacing some interface implementations with proxy/wrappers would be convenient.

[codecov]

Codecov Report

Merging #1298 (e897e13) into master (6110f90) will increase coverage by 3.33%.
The diff coverage is 41.66%.

❗ Current head e897e13 differs from pull request most recent head eb5e807. Consider uploading reports for the commit eb5e807 to get more accurate results

@@            Coverage Diff             @@
##           master    #1298      +/-   ##
==========================================
+ Coverage   21.99%   25.33%   +3.33%     
==========================================
  Files         695      605      -90     
  Lines       27847    21887    -5960     
  Branches    14337    11345    -2992     
==========================================
- Hits         6125     5545     -580     
+ Misses      16447    11224    -5223     
+ Partials     5275     5118     -157     

Impacted Files	Coverage Δ
core/api/service/impl/api_service_impl.cpp	13.22% <0.00%> (-0.12%)	⬇️
core/authorship/block_builder_factory.hpp	100.00% <ø> (ø)
...ore/authorship/impl/block_builder_factory_impl.hpp	100.00% <ø> (ø)
core/authorship/impl/block_builder_impl.hpp	100.00% <ø> (ø)
core/authorship/impl/proposer_impl.cpp	43.90% <ø> (ø)
core/authorship/impl/proposer_impl.hpp	100.00% <ø> (ø)
core/authorship/proposer.hpp	100.00% <ø> (ø)
core/blockchain/impl/block_tree_impl.cpp	21.66% <ø> (+2.17%)	⬆️
core/blockchain/impl/block_tree_impl.hpp	33.33% <ø> (-66.67%)	⬇️
core/consensus/babe/impl/babe_impl.hpp	100.00% <ø> (ø)
... and 26 more

... and 381 files with indirect coverage changes

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