test: Ensure exported state tests have all fields

[pdobacz]

I was wrong when I said that the format inconsistency had a test which we can make pass by amending the exported format - there were no exclusions which my fix would fix. So to have some testing mechanism of correctness, we can maybe add an assertion in statetest_loader like this? I don't want to overdo it and this seems safe to do.

I guess we can also leave it without the assertion.

I don't know yet about the other format inconsistencies found, so I might add more commits here

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.84%. Comparing base (ad04d4e) to head (68da00b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #993   +/-   ##
=======================================
  Coverage   93.84%   93.84%           
=======================================
  Files         146      146           
  Lines       15456    15460    +4     
=======================================
+ Hits        14505    14509    +4     
  Misses        951      951           

Flag	Coverage Δ
eof_execution_spec_tests	17.42% <20.00%> (+<0.01%)	⬆️
ethereum_tests	27.81% <20.00%> (-0.01%)	⬇️
ethereum_tests_silkpre	19.48% <20.00%> (+<0.01%)	⬆️
execution_spec_tests	18.93% <20.00%> (+<0.01%)	⬆️
unittests	89.01% <100.00%> (+<0.01%)	⬆️

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

Files with missing lines	Coverage Δ
test/statetest/statetest_export.cpp	100.00% <100.00%> (ø)
test/statetest/statetest_loader.cpp	96.83% <100.00%> (+0.01%)	⬆️
test/unittests/state_transition.cpp	97.58% <100.00%> (+0.05%)	⬆️

[pdobacz]

@chfast Hey I think I figured out that it is ok to add accessLists and currentRandom like that (see the recent commit). Both were reported missing by EELS team, PTAL

[chfast]

Looks good. Please update the description because it will become the git commit message.