R4R: Query-proposals CLI command

[sunnya97]

• Linked to github-issue with discussion and accepted design
• Updated all relevant documentation (docs/)
• Updated all relevant code comments
• Wrote tests
• Added entries in PENDING.md that include links to the relevant issue or PR that most accurately describes the change.
• Updated cmd/gaia and examples/

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For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #1845 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1845   +/-   ##
========================================
  Coverage    63.83%   63.83%           
========================================
  Files          118      118           
  Lines         7024     7024           
========================================
  Hits          4484     4484           
  Misses        2285     2285           
  Partials       255      255

[cwgoes]

LGTM, but can we add a way to start at a nonzero proposal ID - or iterate backwards, e.g. "most recent 5 proposals"?

[alexanderbez]

failed due to: unused CommitStoreLoader: KVStoreKey{0xc420c5c5e0, params} 😦

[rigelrozanski]

@alexanderbez did you run a command to make it fail? CI is passing we should integrate in this failing test if so

[ValarDragon]

Did that fail in Gaiad export? There may be an issue with circle CI caching or something there, since it also errored on my PR in #1862. We may want to consider disabling the GaiadExport command or investigating / better logging whats going on there.

[alexanderbez]

@rigelrozanski no I just simply got that from the failed build output. Seems to pass now?

[alexanderbez]

Fixed pending changelog. Was @cwgoes comment ever addressed?

[sunnya97]

@cwgoes's request was added

[cwgoes]

utACK