Proto Client Migration: x/bank

[alexanderbez]

• A few fixes and ADR updates to existing protobuf work.
• Create new CLI handlers for x/bank that are proto compatible.
• Create a framework (client/tx) for all signing and generating needs.
• Prepare PostProcessResponseBare and PostProcessResponse for Proto compatibility

ref: #5864

---

For contributor use:

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

---

For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #5865 into master will decrease coverage by 0.48%.
The diff coverage is 11.6%.

@@            Coverage Diff             @@
##           master    #5865      +/-   ##
==========================================
- Coverage   32.27%   31.79%   -0.49%     
==========================================
  Files         355      358       +3     
  Lines       39447    40192     +745     
==========================================
+ Hits        12731    12778      +47     
- Misses      25440    26127     +687     
- Partials     1276     1287      +11

Impacted Files	Coverage Δ
client/context/context.go	30.12% <0%> (-2.74%)	⬇️
x/distribution/handler.go	8.82% <0%> (ø)	⬆️
types/codec.go	27.27% <0%> (+2.27%)	⬆️
types/result.go	88.46% <0%> (-8.18%)	⬇️
x/auth/types/stdtx.go	53.16% <0%> (-1.03%)	⬇️
codec/std/tx.go	58.66% <0%> (-0.8%)	⬇️
types/types.pb.go	3.81% <0.63%> (-1.92%)	⬇️
x/crisis/handler.go	100% <100%> (ø)	⬆️
codec/proto_codec.go	63.33% <100%> (+0.83%)	⬆️
baseapp/baseapp.go	72.54% <100%> (ø)	⬆️
... and 13 more

[alessio]

Good one!

[fedekunze]

LGTM.

[sahith-narahari]

@alexanderbez this looks like a duplicate import, would you like me to remove this in slashing PR

[alexanderbez]

yes, please! good catch :)