SNOW-715504: MFA token cache support

[sfc-gh-jmartinezramirez]

Description

Added support for MFA token cache.

Checklist

• Code compiles correctly
• Code is formatted according to Coding Conventions
• Created tests which fail without the change (if possible)
• All tests passing (dotnet test)
• Extended the README / documentation, if necessary
• Provide JIRA issue id (if possible) or GitHub issue id in PR name

[codecov]

Codecov Report

Attention: Patch coverage is 85.40268% with 87 lines in your changes missing coverage. Please review.

Project coverage is 86.11%. Comparing base (a33bb45) to head (f5e1862).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...ager/Infrastructure/SFCredentialManagerFileImpl.cs	85.39%	21 Missing and 5 partials ⚠️
...astructure/SFCredentialManagerWindowsNativeImpl.cs	81.17%	14 Missing and 2 partials ⚠️
Snowflake.Data/Core/Session/SessionPool.cs	82.00%	3 Missing and 6 partials ⚠️
...e.Data/Client/SnowflakeCredentialManagerFactory.cs	86.88%	4 Missing and 4 partials ⚠️
Snowflake.Data/Core/Session/SFSession.cs	78.94%	6 Missing and 2 partials ⚠️
Snowflake.Data/Core/Tools/UnixOperations.cs	72.22%	4 Missing and 1 partial ⚠️
...e.Data/Core/Authenticator/MFACacheAuthenticator.cs	78.94%	3 Missing and 1 partial ⚠️
Snowflake.Data/Core/Tools/FileOperations.cs	55.55%	3 Missing and 1 partial ⚠️
Snowflake.Data/Core/Tools/StringUtils.cs	75.00%	1 Missing and 1 partial ⚠️
...Core/Authenticator/ExternalBrowserAuthenticator.cs	0.00%	1 Missing ⚠️
... and 4 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #988      +/-   ##
==========================================
- Coverage   86.32%   86.11%   -0.21%     
==========================================
  Files         121      129       +8     
  Lines       11845    12404     +559     
  Branches     1212     1273      +61     
==========================================
+ Hits        10225    10682     +457     
- Misses       1331     1406      +75     
- Partials      289      316      +27     

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