[BugFix: Issue #265] Add deterministic order for resources and data sources rendered with the OpenAPI Terraform Documentation Renderer

[dikhan]

What problem does this Pull Request solve?

Please link to the issue number here (issue will be closed when PR is merged): Closes #265

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• New feature (change that adds new functionality)
• Bug-fix (change that fixes current functionality)
• Tech debt (enhances the current functionality)
• New release (pumps the version)

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• I have read and followed the CONTRIBUTING guidelines
• I have added tests that prove my fix is effective or that my feature works
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[codecov]

Codecov Report

Merging #267 into master will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #267      +/-   ##
==========================================
+ Coverage   91.85%   91.87%   +0.02%     
==========================================
  Files          61       61              
  Lines        3611     3620       +9     
==========================================
+ Hits         3317     3326       +9     
  Misses        199      199              
  Partials       95       95              

Impacted Files	Coverage Δ
...erator/openapi_terraform_provider_doc_generator.go	100.00% <100.00%> (ø)

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[lillchan]

@dikhan I noticed the ordering in the example html changed, so I added a re-rendered version to this PR. I tried rendering the example ~5 times and the order didn't change, so looks good to me. Feel free to merge if that last commit looks ok.

[dikhan]

Good call @lillchan , thx. Looks good to me, merging the PR.