gateway/events: Create status API with stream/pipeline ID info

[gioelecerati]

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Specific updates (required)
Draft

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Does this pull request close any open issues?

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass
• README and other documentation updated
• Pending changelog updated

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 78 lines in your changes missing coverage. Please review.

Project coverage is 34.00324%. Comparing base (75af747) to head (9a192a6).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
server/ai_live_video.go	0.00000%	29 Missing ⚠️
server/ai_http.go	0.00000%	25 Missing ⚠️
server/ai_pipeline_status.go	0.00000%	13 Missing ⚠️
server/ai_mediaserver.go	0.00000%	11 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3310         +/-   ##
===================================================
- Coverage   34.04273%   34.00324%   -0.03949%     
===================================================
  Files            141         141                 
  Lines          37027       37070         +43     
===================================================
  Hits           12605       12605                 
- Misses         23703       23746         +43     
  Partials         719         719                 

Files with missing lines	Coverage Δ
server/ai_process.go	0.60554% <ø> (ø)
server/auth.go	63.72549% <ø> (ø)
server/ai_mediaserver.go	7.91209% <0.00000%> (-0.17780%)	⬇️
server/ai_pipeline_status.go	0.00000% <0.00000%> (ø)
server/ai_http.go	9.69697% <0.00000%> (-0.38177%)	⬇️
server/ai_live_video.go	0.00000% <0.00000%> (ø)

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Files with missing lines	Coverage Δ
server/ai_process.go	0.60554% <ø> (ø)
server/auth.go	63.72549% <ø> (ø)
server/ai_mediaserver.go	7.91209% <0.00000%> (-0.17780%)	⬇️
server/ai_pipeline_status.go	0.00000% <0.00000%> (ø)
server/ai_http.go	9.69697% <0.00000%> (-0.38177%)	⬇️
server/ai_live_video.go	0.00000% <0.00000%> (ø)

[victorges]

LGTM