Fail early on StateDB functions

[davcrypto]

Closes: #410

Description

Introduce stateErr fields into keeper so that stateDB functions enabled ability to detect previous error

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[codecov]

Codecov Report

Merging #566 (205d167) into main (0463c8b) will decrease coverage by 0.67%.
The diff coverage is 19.62%.

@@            Coverage Diff             @@
##             main     #566      +/-   ##
==========================================
- Coverage   53.39%   52.72%   -0.68%     
==========================================
  Files          64       64              
  Lines        5128     5233     +105     
==========================================
+ Hits         2738     2759      +21     
- Misses       2263     2320      +57     
- Partials      127      154      +27     

Impacted Files	Coverage Δ
x/evm/keeper/statedb.go	73.35% <14.00%> (-12.87%)	⬇️
x/evm/keeper/keeper.go	74.56% <100.00%> (+0.14%)	⬆️
x/evm/keeper/state_transition.go	74.90% <100.00%> (+0.59%)	⬆️

[fedekunze]

Thank you! Looks good in general, but the error is not cleared anywhere (I only see it on the test).

Can you also add a changelog entry under Improvements? 🙏

[davcrypto]

Thanks @fedekunze for the review. Made some update and explanation according to the your comments. Lets discuss on it