Add linter

[alessio]

---

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• Review Codecov Report in the comment section below once CI passes

[codecov]

Codecov Report

Merging #376 (76d6891) into develop (634a84f) will increase coverage by 0.06%.
The diff coverage is 85.98%.

@@             Coverage Diff             @@
##           develop     #376      +/-   ##
===========================================
+ Coverage    82.45%   82.52%   +0.06%     
===========================================
  Files           20       20              
  Lines         2286     2283       -3     
===========================================
- Hits          1885     1884       -1     
+ Misses         228      226       -2     
  Partials       173      173              

Impacted Files	Coverage Δ
x/liquidity/types/params.go	98.43% <ø> (ø)
x/liquidity/keeper/invariants.go	60.38% <42.85%> (ø)
x/liquidity/types/swap.go	78.32% <82.75%> (+0.48%)	⬆️
x/liquidity/keeper/store.go	88.23% <83.78%> (ø)
x/liquidity/keeper/liquidity_pool.go	80.24% <100.00%> (ø)
x/liquidity/keeper/swap.go	63.09% <100.00%> (ø)
x/liquidity/simulation/operations.go	75.09% <100.00%> (ø)
x/liquidity/types/keys.go	100.00% <100.00%> (ø)
x/liquidity/types/liquidity_pool.go	97.26% <100.00%> (ø)
x/liquidity/types/msgs.go	100.00% <100.00%> (ø)
... and 1 more

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[dongsam]

Thank you for the PR! @alessio

As discussed in cosmos/cosmos-sdk#7032, some of the Lint is broken by keeping the variable names of the PascalCase (...Id) automatically generated by the grpc-gateway. Is it okay to exclude these parts from the Lint?

examples

• Error: var poolId should be poolID (golint)
• Error: method parameter poolId should be poolID (golint)
• Error: func parameter swapTypeId should be swapTypeID (golint)
• Error: const DefaultPoolTypeId should be DefaultPoolTypeID (golint)
• ...

[alessio]

Is it okay to exclude these parts from the Lint?

Of course it is! I'd recommend adding all relevant //nolint:$LINTER 👍

[hallazzang]

@alessio I'm currently working on resolving linter issues!

[alessio]

Thank you so very much! 🙏🏻