OCM-6542 | feat: add cmd to attach policy

[marcolan018]

https://issues.redhat.com/browse/OCM-6542

[codecov]

Codecov Report

Attention: Patch coverage is 55.61798% with 79 lines in your changes are missing coverage. Please review.

Project coverage is 23.22%. Comparing base (26d550d) to head (0f226fb).
Report is 14 commits behind head on master.

Files	Patch %	Lines
pkg/policy/policy_service.go	59.45%	22 Missing and 8 partials ⚠️
cmd/attach/policy/cmd.go	73.91%	13 Missing and 5 partials ⚠️
pkg/aws/mock_client.go	0.00%	18 Missing ⚠️
pkg/aws/client.go	37.50%	5 Missing ⚠️
pkg/aws/quota.go	0.00%	5 Missing ⚠️
pkg/test/helpers.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1941      +/-   ##
==========================================
+ Coverage   22.51%   23.22%   +0.70%     
==========================================
  Files         131      136       +5     
  Lines       20840    21160     +320     
==========================================
+ Hits         4692     4914     +222     
- Misses      15797    15879      +82     
- Partials      351      367      +16     

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[ciaranRoche]

Can you have a look at how we structured the describe autoscaler cmd, so we can align this new command to use the new runner method 🙏

[marcolan018]

@davidleerh @ciaranRoche @robpblake @gdbranco
Can you help to review this pr again? I completed changes based on your comments including:

• support multiple policy attach in one command
• check service quota for policy per role before attach
• code refactoring to adopt the latest defaultRunner pattern

[davidleerh]

aside from few nit picks with error messages, LGTM overall.
Manually tested the flow to see it working as expected.

[openshift-ci]

@marcolan018: all tests passed!

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[davidleerh]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: davidleerh, marcolan018

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