Introduce map in Fixed/Variable sized Array types

[darkdrag00nv2]

Work towards #2605

Description

Introduce map function for creating a copy of an Array value with its entries transformed by a transformation function.

This function would be unavailable to resource arrays. It can be enabled for resources as a reference in the future.

Will send docs PR post the merge.

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• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[codecov]

Codecov Report

Merging #2737 (519407f) into master (510df95) will increase coverage by 0.03%.
Report is 2 commits behind head on master.
The diff coverage is 90.54%.

@@            Coverage Diff             @@
##           master    #2737      +/-   ##
==========================================
+ Coverage   79.15%   79.18%   +0.03%     
==========================================
  Files         333      333              
  Lines       78379    78527     +148     
==========================================
+ Hits        62037    62183     +146     
+ Misses      14044    14043       -1     
- Partials     2298     2301       +3     

Flag	Coverage Δ
unittests	79.18% <90.54%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
runtime/interpreter/value.go	67.13% <85.54%> (+0.11%)	⬆️
runtime/sema/type.go	90.00% <96.92%> (+0.25%)	⬆️

... and 2 files with indirect coverage changes

[turbolent]

Nice!

[darkdrag00nv2]

@turbolent @SupunS Addressed feedback. Should be ready to merge!