feat: standalone errors go.mod

[aaronc]

Description

This PR:

• moves all of the types/errors code to a new errors go module, except:
  • the RootCodespace errors in types/errors stay there
  • ABCI stuff that depends on tendermint stays in `types/errors
• adds aliases to everything in types/errors referencing errors so this is not a breaking change

This will allow standalone go modules to use the same error types as the SDK. In particular, I want the orm to reference errors and then the SDK will be able to import orm and it can stay standalone. The same could apply to the db module.

After this PR the plan is to:

• tag github.com/cosmos/cosmos-sdk/errors as v1.0 🎉
• remove the replace directive for errors in the main SDK go.mod

---

Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

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I have...

• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[tac0turtle]

utACK, can we add a changelog entry

[aaronc]

utACK, can we add a changelog entry

added. does it make sense that this goes under Improvements?

also, I added a CHANGELOG for the errors go module. how should we handle that release? do I include it as Unreleased or put v1.0 now and tag later? do we need a separate release branch?

[amaury1093]

What happened to the core/base idea discussed in #9011?

in my mind errors has too small scope to warrant its own module. Same applies to math or codec. I personally prefer to have one core module to regroup these small building blocks, instead of having to maintain 10+ small go modules.

[alexanderbez]

I tend to sort of agree here. What are your thoughts @aaronc?

[aaronc]

I'm going to write up my thoughts in a discussion thread and link back here

[aaronc]

Posted my thoughts here: #10582 (comment). Would be great to hear your comments on this

[tac0turtle]

@AmauryM @alexanderbez @robert-zaremba what are your thoughts on allowing this to be merged for now but continuing the discussion in the new year.

[amaury1093]

SGTM 👍. If we tag, maybe we can tag v1.0.0-alpha1? This way it can unblock work on the orm, while still giving us flexibility to change our minds if needed.

[amaury1093]

lgtm, pending tests

[aaronc]

SGTM 👍. If we tag, maybe we can tag v1.0.0-alpha1? This way it can unblock work on the orm, while still giving us flexibility to change our minds if needed.

How about beta because the SDK will depend on it?

[amaury1093]

beta is fine too

[codecov]

Codecov Report

Merging #10779 (f5f24a6) into master (59ae402) will decrease coverage by 1.42%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #10779      +/-   ##
==========================================
- Coverage   66.00%   64.58%   -1.43%     
==========================================
  Files         632      611      -21     
  Lines       63334    58741    -4593     
==========================================
- Hits        41805    37936    -3869     
+ Misses      19199    18673     -526     
+ Partials     2330     2132     -198     

Impacted Files	Coverage Δ
errors/errors.go	100.00% <100.00%> (ø)
errors/handle.go
errors/stacktrace.go
types/errors/abci.go
x/group/internal/orm/iterator.go
x/group/client/testutil/query.go
x/group/keeper/invariants.go
x/group/keeper/keeper.go
x/group/keeper/msg_server.go
x/group/client/testutil/tx.go
... and 13 more