Add src docs tests and utilities folder

[mckaragoz]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.63%. Comparing base (3478f1b) to head (1ef1e2b).
⚠️ Report is 1 commits behind head on dev.

Files with missing lines	Patch %	Lines
....MudBlazor.Extensions/Base/MudBaseInputExtended.cs	33.33%	2 Missing ⚠️
...Components/PasswordField/MudPasswordField.razor.cs	0.00%	0 Missing and 1 partial ⚠️

❌ Your patch status has failed because the patch coverage (25.00%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #580      +/-   ##
==========================================
- Coverage   68.23%   67.63%   -0.61%     
==========================================
  Files         234      106     -128     
  Lines        9542     7412    -2130     
  Branches     1598     1276     -322     
==========================================
- Hits         6511     5013    -1498     
+ Misses       2467     1934     -533     
+ Partials      564      465      -99     

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