Fix the bug of Ostracon's changes of #194

[tnasu]

Description

#194 was made of too many things. But, it made some of the wrong changes. Here are the wrong changes:

• Remove to call CheckEvidence on execution.go:ValidateBlock
• Forget to add the fields of Round/Proof on protobuf.go:Header
• Mistake to remove the field of ValidatorHash on protobuf.go:Header
• Forget to add the field of VotingWeight on validator.go:String

[codecov]

Codecov Report

Merging #526 (aa125f5) into main (7ba5191) will increase coverage by 0.17%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #526      +/-   ##
==========================================
+ Coverage   65.99%   66.17%   +0.17%     
==========================================
  Files         279      279              
  Lines       38028    38038      +10     
==========================================
+ Hits        25097    25172      +75     
+ Misses      11129    11073      -56     
+ Partials     1802     1793       -9     

Impacted Files	Coverage Δ
state/execution.go	67.46% <100.00%> (+0.31%)	⬆️
types/protobuf.go	81.70% <100.00%> (+1.18%)	⬆️
types/validator.go	83.05% <100.00%> (+0.14%)	⬆️
crypto/sr25519/pubkey.go	35.89% <0.00%> (-7.70%)	⬇️
statesync/snapshots.go	93.71% <0.00%> (-1.26%)	⬇️
p2p/pex/pex_reactor.go	79.67% <0.00%> (-0.62%)	⬇️
consensus/state.go	73.88% <0.00%> (+0.34%)	⬆️
p2p/conn/connection.go	80.38% <0.00%> (+0.57%)	⬆️
statesync/syncer.go	82.80% <0.00%> (+0.57%)	⬆️
p2p/switch.go	66.52% <0.00%> (+0.61%)	⬆️
... and 10 more