SNOW-834781: Remove log4net and delegate logging to consumers

[sfc-gh-ext-simba-lf]

Description

Remove the log4net dependency and replace with the Microsoft logging interface so users can plug in their own custom loggers

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 97.97571% with 10 lines in your changes missing coverage. Please review.

Project coverage is 86.67%. Comparing base (c45f1ad) to head (588c1ee).

Files with missing lines	Patch %	Lines
Snowflake.Data/Core/SFBlockingChunkDownloaderV3.cs	95.83%	3 Missing and 3 partials ⚠️
Snowflake.Data/Logger/EasyLoggerManager.cs	88.00%	0 Missing and 3 partials ⚠️
Snowflake.Data/Logger/SFLoggerImpl.cs	99.06%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1057      +/-   ##
==========================================
+ Coverage   86.17%   86.67%   +0.49%     
==========================================
  Files         131      134       +3     
  Lines       12549    12802     +253     
  Branches     1286     1317      +31     
==========================================
+ Hits        10814    11096     +282     
+ Misses       1416     1389      -27     
+ Partials      319      317       -2     

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[sfc-gh-knozderko]

does it mean that we create a custom logger with logging to console always enabled?
Could we defer the decision about appenders to the customer configuration?

[sfc-gh-ext-simba-lf]

This means if a customer enables custom logging without setting their own logger then a console logger will be created

If a customer sets the logger then it will return their custom logger with their chosen appenders (logging to console is not enabled unless they added it themselves)

[sfc-gh-knozderko]

Why FormatBrackets is executed only for Debug?

[sfc-gh-ext-simba-lf]

It was because only Debug has a log with brackets. It came from this query which led to this error

Edited to include FormatBrackets for other logging

[sfc-gh-knozderko]

shouldn't it be disabled by default? I thought Easy Logging feature would enable it?

[sfc-gh-ext-simba-lf]

That's correct

s_isSFLoggerEnabled is now set to false and the SF logger is disabled by default

[sfc-gh-knozderko]

Let's say that that at the beginning customer logger was disabled.
Let's say that some class has a static logger eq. private static readonly SFLogger logger = SFLoggerFactory.GetLogger<BasicAuthenticator>();
then the logger would have a value of new SFLoggerPair(..., ILoggerEmptyImpl();)
Let's say then the customer would call EnableCustomLogger().
The logger obtained in the first line would not be modified.
Am I right?
I think we need to reconfigure all the logger when EnableCustomLogger(), switching this field value is not enough.