eoftest: Add support for "containerKind"

[chfast]

Add support for "containerKind" in the EOF validation JSON tests.
Specified in ethereum/execution-spec-tests#651.

[chfast]

We may want to add some unit tests for this format.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.29%. Comparing base (a7aa2a9) to head (6f731ef).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #943   +/-   ##
=======================================
  Coverage   94.29%   94.29%           
=======================================
  Files         142      142           
  Lines       16119    16120    +1     
=======================================
+ Hits        15199    15200    +1     
  Misses        920      920           

Flag	Coverage Δ
eof_execution_spec_tests	16.51% <25.00%> (-0.01%)	⬇️
ethereum_tests	26.99% <25.00%> (-0.01%)	⬇️
ethereum_tests_silkpre	18.70% <0.00%> (-0.01%)	⬇️
execution_spec_tests	17.98% <0.00%> (-0.01%)	⬇️
unittests	89.67% <100.00%> (+<0.01%)	⬆️

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Files	Coverage Δ
test/eoftest/eoftest_runner.cpp	87.87% <100.00%> (+0.37%)	⬆️
test/unittests/eof_validation.cpp	92.98% <100.00%> (ø)

[pdobacz]

LGTM, I cherry picked this to combine with bumping EEST release to 1.0.5 to see if everything works.

re unit test - since we have none for eoftest at the time, let's maybe punt this to an issue?

[chfast]

I simplified it to handle only what we need.

[pdobacz]

Also good like this 👍