fix: fix the mac directories

[glennawatson]

When compiling on OSX the directories to the reference libraries could be incorrect. Fix those to what was in the old event builder.

[codecov]

Codecov Report

Merging #19 into master will decrease coverage by 0.48%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #19      +/-   ##
==========================================
- Coverage   83.38%   82.89%   -0.49%     
==========================================
  Files          36       36              
  Lines        1029     1035       +6     
  Branches      186      189       +3     
==========================================
  Hits          858      858              
- Misses        148      151       +3     
- Partials       23       26       +3

Impacted Files	Coverage Δ
...rmacist.Core/Extractors/PlatformExtractors/tvOS.cs	83.33% <0%> (ø)	⬆️
...cist.Core/Extractors/PlatformExtractors/Android.cs	80% <0%> (-20%)	⬇️
...armacist.Core/Extractors/PlatformExtractors/iOS.cs	83.33% <0%> (-16.67%)	⬇️
...rmacist.Core/ReferenceLocators/ReferenceLocator.cs	86.11% <0%> (ø)	⬆️
...armacist.Core/Extractors/PlatformExtractors/Mac.cs	83.33% <0%> (-16.67%)	⬇️

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