Maintain stable sort order for lists which include sigils

[oalders]

• Ignore sigils when sorting imported symbols
• Maintain stable sort order for lists which include sigils

[codecov-commenter]

Codecov Report

Merging #57 (83529ea) into main (a0afdd8) will increase coverage by 0.26%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #57      +/-   ##
==========================================
+ Coverage   82.78%   83.05%   +0.26%     
==========================================
  Files           8        8              
  Lines         703      714      +11     
  Branches      158      159       +1     
==========================================
+ Hits          582      593      +11     
  Misses         83       83              
  Partials       38       38              

Impacted Files	Coverage Δ
lib/App/perlimports/Include.pm	84.26% <100.00%> (+0.93%)	⬆️

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