feat: government cloud support in ATK

[HuihuiWu-Microsoft]

Add user setting in VSC to allow user to select government cloud type(GCC M, GCC H and DoD). As VSC ATK Azure login in using VSC API, so the setting must match the one in VSC.
ADO: https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/36370668

[codecov]

Codecov Report

❌ Patch coverage is 88.46154% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.23%. Comparing base (fb67669) to head (c5a819c).
⚠️ Report is 5 commits behind head on dev.

Files with missing lines	Patch %	Lines
packages/fx-core/src/common/accountUtils.ts	80.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##              dev   #15137    +/-   ##
========================================
  Coverage   89.23%   89.23%            
========================================
  Files         618      619     +1     
  Lines       37993    38017    +24     
  Branches     7510     7763   +253     
========================================
+ Hits        33903    33926    +23     
- Misses       1973     1975     +2     
+ Partials     2117     2116     -1     

Files with missing lines	Coverage Δ
packages/fx-core/src/common/featureFlags.ts	100.00% <100.00%> (+1.69%)	⬆️
...ackages/fx-core/src/component/driver/aad/create.ts	91.66% <100.00%> (+0.05%)	⬆️
...core/src/component/driver/aad/utility/constants.ts	100.00% <ø> (ø)
packages/fx-core/src/index.ts	100.00% <100.00%> (ø)
packages/vscode-extension/src/config.ts	94.87% <100.00%> (+0.13%)	⬆️
packages/vscode-extension/src/constants.ts	100.00% <100.00%> (ø)
packages/fx-core/src/common/accountUtils.ts	80.00% <80.00%> (ø)

... and 3 files with indirect coverage changes

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