log vote's signer and block when vote is invalid

[zhangchiqing]

Adding logs so that when we receive invalid vote, we know the signer from the error log

[codecov-commenter]

Codecov Report

Merging #1982 (f9fc19a) into master (6569650) will decrease coverage by 0.01%.
The diff coverage is 44.44%.

@@            Coverage Diff             @@
##           master    #1982      +/-   ##
==========================================
- Coverage   57.58%   57.57%   -0.02%     
==========================================
  Files         631      631              
  Lines       36124    36129       +5     
==========================================
- Hits        20802    20800       -2     
- Misses      12703    12711       +8     
+ Partials     2619     2618       -1     

Flag	Coverage Δ
unittests	57.57% <44.44%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
cmd/bootstrap/run/qc.go	40.27% <0.00%> (-2.37%)	⬇️
cmd/bootstrap/cmd/finalize.go	65.37% <100.00%> (+0.11%)	⬆️
...sus/approvals/assignment_collector_statemachine.go	42.30% <0.00%> (-4.81%)	⬇️
engine/collection/synchronization/engine.go	67.93% <0.00%> (ø)
consensus/hotstuff/eventloop/event_loop.go	70.73% <0.00%> (+2.43%)	⬆️

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[zhangchiqing]

bors merge

[bors]

Build succeeded:

• Integration Tests (1.16)
• Integration Tests (1.17)
• Lint
• Unit Tests (1.16)
• Unit Tests (1.17)