impl(common): helper functions to create Status

[coryan]

These will make it easier to return errors, with less syntactic noise. A future PR will make it easier to create error infos used in the library.

Motivated by #5915

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This change is 

[google-cloud-cpp-bot]

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[codecov]

Codecov Report

Base: 93.81% // Head: 93.82% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (b1ce6b3) compared to base (29ffdb9).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10270   +/-   ##
=======================================
  Coverage   93.81%   93.82%           
=======================================
  Files        1565     1567    +2     
  Lines      143754   143798   +44     
=======================================
+ Hits       134863   134914   +51     
+ Misses       8891     8884    -7     

Impacted Files	Coverage Δ
google/cloud/internal/make_status.cc	100.00% <100.00%> (ø)
google/cloud/internal/make_status_test.cc	100.00% <100.00%> (ø)
google/cloud/completion_queue_test.cc	97.13% <0.00%> (-0.20%)	⬇️
google/cloud/storage/parallel_upload.cc	98.62% <0.00%> (+0.34%)	⬆️
...torage/examples/storage_service_account_samples.cc	97.64% <0.00%> (+0.58%)	⬆️
...cloud/pubsub/internal/subscription_session_test.cc	98.65% <0.00%> (+0.67%)	⬆️
...integration_tests/schema_admin_integration_test.cc	100.00% <0.00%> (+1.11%)	⬆️
google/cloud/internal/random_test.cc	100.00% <0.00%> (+3.70%)	⬆️

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Google Cloud Build Logs
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