Add some missing attributes to SSLObject

[tarasko]

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[codecov-commenter]

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Codecov Report

❌ Patch coverage is 97.36842% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.01%. Comparing base (438fc04) to head (c90ed95).
⚠️ Report is 20 commits behind head on master.

Files with missing lines	Patch %	Lines
aiofastnet/ssl_object.pyx	97.33%	2 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
+ Coverage   89.98%   92.01%   +2.02%     
==========================================
  Files          10       10              
  Lines        2217     2279      +62     
  Branches       24       24              
==========================================
+ Hits         1995     2097     +102     
+ Misses        211      171      -40     
  Partials       11       11              

Flag	Coverage Δ
Linux	87.49% <97.36%> (+2.10%)	⬆️
Windows	84.11% <97.36%> (+1.97%)	⬆️
macOS	83.89% <97.36%> (+1.93%)	⬆️

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