SNOW-715619: Support authentication with external browser

[sfc-gh-ext-simba-jy]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 16.41337% with 275 lines in your changes missing coverage. Please review.

Project coverage is 77.96%. Comparing base (1c9842a) to head (5670642).

Files with missing lines	Patch %	Lines
cpp/lib/IAuth.cpp	9.50%	257 Missing ⚠️
lib/client.c	18.18%	9 Missing ⚠️
cpp/lib/Authenticator.cpp	86.20%	4 Missing ⚠️
lib/snowflake_util.h	0.00%	4 Missing ⚠️
include/snowflake/IAuth.hpp	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##           SNOW-715551v2     #813      +/-   ##
=================================================
- Coverage          78.39%   77.96%   -0.44%     
=================================================
  Files                107      108       +1     
  Lines               9484     9814     +330     
=================================================
+ Hits                7435     7651     +216     
- Misses              2049     2163     +114     

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[sfc-gh-ext-simba-hx]

For static library we should not add extra linking libs here but should be in the link options for test cases:
https://github.com/snowflakedb/libsnowflakeclient/blob/master/tests/CMakeLists.txt#L235
@sfc-gh-ext-simba-jl Just a heads up you might need to adjust build options for dynamic lib when merging your PR with the changes here.
Also CoreServices seems to be a larger one FYI ODBC are using following build options on MacOS maybe we could use the same?

if (APPLE)
    target_link_libraries(snowflakeclient INTERFACE
        "-framework CoreFoundation"
        "-framework SystemConfiguration"
        "-framework ApplicationServices"
        "-framework Security"
        )
endif ()

[sfc-gh-ext-simba-hx]

Why we need IAuthWebServer defined in external header file? Does it include driver specific logic that needs to be overridden on ODBC or any other driver side?
For my understanding in ODBC IAuthWebServer is defined as pure interface without any implementation, for test purpose only so it can be overridden in unit test cases.
If we want to keep test cases on both ODBC and libsfclient side, keep IAuthWebServer as a pure interface would be better. Or if test it on libsfclient side is enough, we could move the definition to internal header files.

[sfc-gh-ext-simba-hx]

Please check ODBC test cases and take cases as much as possible to here. https://github.com/snowflakedb/snowflake-odbc/blob/master/Tests/UnitTests/UnitAuthenticatorTest/UnitAuthenticatorTest.cpp
e.g. SF_CON_BROWSER_RESPONSE_TIMEOUT and SF_CON_DISABLE_CONSOLE_LOGIN need to be tested.