Function to convert ABI function to Clarity repr string

[reedrosenbluth]

Description

1. Convert an ABI function typedef to a Clarity typedef string
2. Reformat output from type -> string functions

Type of Change

• [x] New feature
• [ ] Bug fix
• [ ] API reference/documentation update
• [ ] Other

Checklist

• [x] Code is commented where needed
• [x] Unit test coverage for new or modified code paths
• [x] npm run test passes
• [x] Changelog is updated
• [x] Tag 1 of @yknl, @zone117x, @reedrosenbluth for review

[codecov[bot]]

Codecov Report

Merging #84 into master will increase coverage by 0.06%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #84      +/-   ##
==========================================
+ Coverage   84.35%   84.41%   +0.06%     
==========================================
  Files          27       27              
  Lines        1713     1720       +7     
  Branches      370      373       +3     
==========================================
+ Hits         1445     1452       +7     
  Misses        266      266              
  Partials        2        2              

Impacted Files	Coverage Δ
src/clarity/clarityValue.ts	100.00% <100.00%> (ø)
src/contract-abi.ts	74.30% <100.00%> (+1.04%)	:arrow_up:

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