feat: support env variables in localization.json

[HuihuiWu-Microsoft]

ADO:
https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/30459175
https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/30459177

Screenshots:
create app package and upload

validate fail when env variables not resolved

[codecov]

Codecov Report

Attention: Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 90.10%. Comparing base (ae4f2b9) to head (ff5cd9b).
Report is 6 commits behind head on dev.

Files with missing lines	Patch %	Lines
.../src/component/driver/teamsApp/createAppPackage.ts	80.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##              dev   #12889    +/-   ##
========================================
  Coverage   90.10%   90.10%            
========================================
  Files         578      578            
  Lines       34527    34541    +14     
  Branches     6717     6904   +187     
========================================
+ Hits        31110    31123    +13     
  Misses       1505     1505            
- Partials     1912     1913     +1     

Files with missing lines	Coverage Δ
...c/component/driver/teamsApp/utils/ManifestUtils.ts	82.80% <100.00%> (+0.72%)	⬆️
.../fx-core/src/component/driver/teamsApp/validate.ts	91.16% <100.00%> (ø)
.../src/component/driver/teamsApp/createAppPackage.ts	94.71% <80.00%> (-0.77%)	⬇️

... and 2 files with indirect coverage changes