✨ ♻️ Cached TrieStateStore

[greymistcube]

This overhauls existing caching strategy. Shows about 20% ~ 25% improvement for Block execution time with 1 million cache capacity. There is a slight change in API, but should be compatible as added parameters are all optional. This should be refactored before 3.8 release.

Edit: I'm looking into whether MerkleTrie() constructors should be made internal. 😶

[pull-request-quantifier-deprecated]

This PR has 205 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!

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Quantification details

Label      : Large
Size       : +115 -90
Percentile : 60.5%

Total files changed: 8

Change summary by file extension:
.md : +7 -1
.cs : +108 -89

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[greymistcube]

Merged in #3495