R4R: General Sanitization & Gas Cost Review

[alexanderbez]

(partially?) addresses #1008

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• 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.

• Wrote tests

• Updated relevant documentation (docs/)

• Added entries in PENDING.md with issue #

• rereviewed Files changed in the github PR explorer

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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)

[alexanderbez]

@cwgoes @jackzampolin lmk if there are any other modifications to make or we deem necessary.

[jackzampolin]

Has tests, feels good man 😎 👍

[codecov]

Codecov Report

Merging #3552 into develop will increase coverage by 0.08%.
The diff coverage is 66.66%.

@@             Coverage Diff             @@
##           develop    #3552      +/-   ##
===========================================
+ Coverage    57.24%   57.33%   +0.08%     
===========================================
  Files          179      179              
  Lines        14105    14133      +28     
===========================================
+ Hits          8075     8103      +28     
+ Misses        5545     5544       -1     
- Partials       485      486       +1