Remove use of boost::filesystem in public APIs

[jslee02]

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• Document new methods and classes
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• Set version target by selecting a milestone on the right side
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[codecov]

Codecov Report

Merging #1417 into master will decrease coverage by 0.01%.
The diff coverage is 58.82%.

@@            Coverage Diff            @@
##           master   #1417      +/-   ##
=========================================
- Coverage   57.22%   57.2%   -0.02%     
=========================================
  Files         367     367              
  Lines       27568   27574       +6     
=========================================
- Hits        15775   15773       -2     
- Misses      11793   11801       +8

Impacted Files	Coverage Δ
dart/common/detail/SharedLibraryManager.hpp	100% <ø> (ø)	⬆️
dart/common/SharedLibrary.cpp	51.42% <44.44%> (-10.65%)	⬇️
dart/common/detail/SharedLibraryManager.cpp	68.18% <75%> (-6.82%)	⬇️