Closes #6146

Closes: #5806

Co-authored-by: Lanie Hei <heixx011@umn.edu>

## Description

Enable errcheck linter throughout the codebase

Closes: #5059

## Description

partially cleanup in preparation for errcheck

i ignored a bunch of defer errors in tests but with the update to go 1.14 we can use `t.Cleanup(func() { if err := <>; err != nil {..}}` to cover those errors, I will do this in pr number two of enabling errcheck.

ref #5059

* format: add format cmd & goimport repo

- replaced format command
- added goimports to format command
- ran goimports

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* fix outliers & undo proto file changes

* Fix many golint errors

* Fix golint errors in the 'lite' package

* Don't export Pool.store

* Fix typo

* Revert unwanted changes

* Fix errors in counter package

* Fix linter errors in kvstore package

* Fix linter error in example package

* Fix error in tests package

* Fix linter errors in v2 package

* Fix linter errors in consensus package

* Fix linter errors in evidence package

* Fix linter error in fail package

* Fix linter errors in query package

* Fix linter errors in core package

* Fix linter errors in node package

* Fix linter errors in mempool package

* Fix linter error in conn package

* Fix linter errors in pex package

* Rename PEXReactor export to Reactor

* Fix linter errors in trust package

* Fix linter errors in upnp package

* Fix linter errors in p2p package

* Fix linter errors in proxy package

* Fix linter errors in mock_test package

* Fix linter error in client_test package

* Fix linter errors in coretypes package

* Fix linter errors in coregrpc package

* Fix linter errors in rpcserver package

* Fix linter errors in rpctypes package

* Fix linter errors in rpctest package

* Fix linter error in json2wal script

* Fix linter error in wal2json script

* Fix linter errors in kv package

* Fix linter error in state package

* Fix linter error in grpc_client

* Fix linter errors in types package

* Fix linter error in version package

* Fix remaining errors

* Address review comments

* Fix broken tests

* Reconcile package coregrpc

* Fix golangci bot error

* Fix new golint errors

* Fix broken reference

* Enable golint linter

* minor changes to bring golint into line

* fix failing test

* fix pex reactor naming

* address PR comments

Refs #3262

* Fix long line errors in abci, crypto, and libs packages

* Fix long lines in p2p and rpc packages

* Fix long lines in abci, state, and tools packages

* Fix long lines in behaviour and blockchain packages

* Fix long lines in cmd and config packages

* Begin fixing long lines in consensus package

* Finish fixing long lines in consensus package

* Add lll exclusion for lines containing URLs

* Fix long lines in crypto package

* Fix long lines in evidence package

* Fix long lines in mempool and node packages

* Fix long lines in libs package

* Fix long lines in lite package

* Fix new long line in node package

* Fix long lines in p2p package

* Ignore gocritic warning

* Fix long lines in privval package

* Fix long lines in rpc package

* Fix long lines in scripts package

* Fix long lines in state package

* Fix long lines in tools package

* Fix long lines in types package

* Enable lll linter

* Pin range scope vars

* Don't disable scopelint

This PR repairs linter errors seen when running the following commands:
golangci-lint run --no-config --disable-all=true --enable=scopelint

Contributes to #3262

- depndabot couldnt update a few deps as they needed to beupdated together.
- PRs: #3946, 3938 can be closed with this PR

Signedoff-by: Marko Baricevic <marbar3778@yahoo.com>

Refs #3262

Refs #3060

Fixes #2868 where module=main setting overrides all others

* add year to log format

* update documentation

* Implement BFT time

* set LastValidators when creating state in state helper

for heights >= 2

This reverts commit d02c5d1e30.