🎨 Add missing files/dir in MANIFEST.in

[Ousret]

Pretty straighforward

[codecov-commenter]

Codecov Report

Merging #78 (1e0048f) into master (4d3e61a) will increase coverage by 0.17%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #78      +/-   ##
==========================================
+ Coverage   84.54%   84.71%   +0.17%     
==========================================
  Files          11       11              
  Lines        1145     1145              
==========================================
+ Hits          968      970       +2     
+ Misses        177      175       -2     

Impacted Files	Coverage Δ
charset_normalizer/api.py	82.05% <0.00%> (+1.02%)	⬆️

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