Remove internal folder in package Crisis

[jgimeno]

Closes: #5646

Description

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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)

[alexanderbez]

ACK

[alexanderbez]

The package name in x/crisis/types/types.proto needs to be updated and the proto gen needs to be executed. Otherwise, LGTM :)

[codecov]

Codecov Report

Merging #5745 into master will increase coverage by 0.01%.
The diff coverage is 19.04%.

@@            Coverage Diff             @@
##           master    #5745      +/-   ##
==========================================
+ Coverage    36.8%   36.81%   +0.01%     
==========================================
  Files         336      336              
  Lines       32743    32751       +8     
==========================================
+ Hits        12051    12058       +7     
- Misses      19464    19465       +1     
  Partials     1228     1228

Impacted Files	Coverage Δ
simapp/test_helpers.go	0% <0%> (ø)	⬆️
types/handler.go	77.77% <100%> (+77.77%)	⬆️

[alexanderbez]

ACK