x/params: Protobug Tx CLI Migration

[alexanderbez]

ref: #5864

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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

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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 #5969 into master will decrease coverage by 0.12%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #5969      +/-   ##
==========================================
- Coverage   58.39%   58.27%   -0.13%     
==========================================
  Files         396      396              
  Lines       23537    23586      +49     
==========================================
  Hits        13745    13745              
- Misses       8831     8880      +49     
  Partials      961      961              

[tac0turtle]

LGTM