Add pubsub service to notification engine

[KyriosGN0]

This PR adds google pubusb service, similar to AWS SQS

should close #168

[KyriosGN0]

Note: i didn't test this live, as there are no docs on how to do it, if there are any, i would gladly try them out
Tested locally to work

[codecov]

Codecov Report

❌ Patch coverage is 58.33333% with 25 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.13%. Comparing base (da04400) to head (4542518).
⚠️ Report is 28 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/services/pubsub.go	62.26%	17 Missing and 3 partials ⚠️
pkg/services/services.go	28.57%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #392      +/-   ##
==========================================
+ Coverage   55.41%   57.13%   +1.72%     
==========================================
  Files          46       49       +3     
  Lines        4125     3782     -343     
==========================================
- Hits         2286     2161     -125     
+ Misses       1511     1263     -248     
- Partials      328      358      +30     

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[pasha-codefresh]

@KyriosGN0 Could you fix conflicts? Also what docs you missing in order to test things?

[KyriosGN0]

@pasha-codefresh my main issue is testing locally before i can merge this branch, the docs mention only after i merge this PR, but even then, i can't get argocd to run on my macos

[pasha-codefresh]

Okay, I see, i will help you with testing

[KyriosGN0]

Okay, I see, i will help you with testing

@pasha-codefresh will you test it yourself or would you help me set up argocd?

[KyriosGN0]

hey @pasha-codefresh, have you had the chance to test this ?

[KyriosGN0]

hey @pasha-codefresh, any updates? Thanks!

[KyriosGN0]

@pasha-codefresh i ended up doing a successful test on my local machine, could you please review the PR ?