go/consensus/tendermint: Handle LIGHT_CLIENT_ATTACK evidence

[kostko]

Fixes #3156

[codecov]

Codecov Report

Merging #3671 (deb9d3f) into master (f1d17e9) will decrease coverage by 0.14%.
The diff coverage is 47.05%.

@@            Coverage Diff             @@
##           master    #3671      +/-   ##
==========================================
- Coverage   66.87%   66.73%   -0.15%     
==========================================
  Files         391      391              
  Lines       38126    38134       +8     
==========================================
- Hits        25497    25447      -50     
- Misses       8979     9034      +55     
- Partials     3650     3653       +3     

Impacted Files	Coverage Δ
go/staking/api/slashing.go	54.28% <0.00%> (-7.01%)	⬇️
go/consensus/tendermint/apps/staking/staking.go	52.63% <28.57%> (+0.93%)	⬆️
go/consensus/tendermint/apps/staking/slashing.go	74.19% <100.00%> (+0.42%)	⬆️
...o/consensus/tendermint/apps/staking/state/state.go	58.79% <100.00%> (+0.53%)	⬆️
go/worker/storage/service_external.go	40.74% <0.00%> (-11.12%)	⬇️
go/keymanager/client/client.go	73.68% <0.00%> (-9.65%)	⬇️
go/storage/api/metrics.go	81.53% <0.00%> (-9.24%)	⬇️
go/consensus/tendermint/full/light.go	48.93% <0.00%> (-4.26%)	⬇️
go/consensus/tendermint/full/services.go	80.00% <0.00%> (-4.17%)	⬇️
go/storage/mkvs/prefetch.go	54.71% <0.00%> (-3.78%)	⬇️
... and 29 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f1d17e9...be3eab0. Read the comment docs.