feat: update state validation tool to be compatible with the Mega Map

[thenswan]

Description:
This PR updates the state validation tool to be compatible with the Mega Map. It also cleans up redundant code after such an update.

Related issue(s):
Fixes #19412

Test
Only tested on a Mega Map state, which Tom generated in a longevity test.

[lfdt-bot]

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[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.16% (target: -1.00%)	✅ 100.00%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (dbd6e7b)	102408	76703	74.90%
Head commit (744f866)	101780 (-628)	76397 (-306)	75.06% (+0.16%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#20319)	3	3	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@             Coverage Diff              @@
##               main   #20319      +/-   ##
============================================
+ Coverage     70.99%   71.16%   +0.16%     
+ Complexity    24090    24018      -72     
============================================
  Files          2657     2646      -11     
  Lines        102503   101926     -577     
  Branches      10614    10557      -57     
============================================
- Hits          72775    72531     -244     
+ Misses        25755    25444     -311     
+ Partials       3973     3951      -22     

Files with missing lines	Coverage Δ	Complexity Δ
...main/java/com/swirlds/state/merkle/StateUtils.java	80.76% <100.00%> (+0.18%)	84.00 <1.00> (+1.00)
.../com/swirlds/state/merkle/disk/OnDiskIterator.java	84.00% <100.00%> (ø)	7.00 <0.00> (ø)

... and 48 files with indirect coverage changes

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[thenswan]

It's on hold till #20317 is merged. Then, this PR should be updated again, and only after it, merged.

[OlegMazurov]

The validator kills the consensus node if run in parallel. One testing scenario depends on that.