refactor(x/ecocredit): basket query service revisions

[ryanchristo]

Description

Ref: #715 / Closes: #1152

This pull request completes the audit of the basket query service:

• Add alternative bindings for grpc query endpoints (non-breaking)
• Add client integration tests (grpc and query commands)

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Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
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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your handle next to the items reviewed if you only reviewed selected items.

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)

[codecov]

Codecov Report

Merging #1198 (491342e) into master (46af1a4) will increase coverage by 0.66%.
The diff coverage is 99.39%.

@@            Coverage Diff             @@
##           master    #1198      +/-   ##
==========================================
+ Coverage   69.57%   70.23%   +0.66%     
==========================================
  Files         232      234       +2     
  Lines       23267    23595     +328     
==========================================
+ Hits        16189    16573     +384     
+ Misses       5687     5610      -77     
- Partials     1391     1412      +21     

Flag	Coverage Δ
experimental-codecov	70.31% <99.39%> (+0.70%)	⬆️
stable-codecov	64.87% <99.39%> (+0.80%)	⬆️

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[technicallyty]

lgtm