Improve VM Test Reporting

[holgerd77]

Per-directory test summary:

State diff reporting:

[codecov]

Codecov Report

❌ Patch coverage is 6.84932% with 68 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.92%. Comparing base (0fb3e18) to head (ddad6b1).

Additional details and impacted files

Flag	Coverage Δ
block	87.33% <ø> (ø)
blockchain	88.82% <ø> (ø)
common	93.44% <ø> (ø)
evm	60.12% <ø> (ø)
mpt	89.64% <ø> (-0.09%)	⬇️
statemanager	78.04% <ø> (ø)
static	91.35% <ø> (ø)
tx	87.81% <ø> (ø)
util	80.83% <ø> (ø)
vm	51.33% <6.84%> (-1.70%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

📦 Bundle Size Analysis

Package	Size (min+gzip)	Δ
binarytree	17.5 KB	⚪ ±0%
block	43.8 KB	⚪ ±0%
blockchain	69.9 KB	⚪ ±0%
common	25.4 KB	⚪ ±0%
devp2p	17.7 KB	⚪ ±0%
e2store	87.3 KB	⚪ ±0%
ethash	61.8 KB	⚪ ±0%
evm	63.7 KB	⚪ ±0%
genesis	272.2 KB	⚪ ±0%
mpt	21.9 KB	⚪ ±0%
rlp	1.7 KB	⚪ ±0%
statemanager	41.3 KB	⚪ ±0%
testdata	43.8 KB	⚪ ±0%
tx	20.9 KB	⚪ ±0%
util	13.2 KB	⚪ ±0%
vm	156.7 KB	⚪ ±0%
wallet	15.0 KB	⚪ ±0%

Values are minified+gzipped bundles of each package entry. Workspace deps are bundled; external deps are excluded.

_{Generated by bundle-size workflow}

[holgerd77]

Ok, will take this in.