[cleanup] reorganize rbac-related methods

[celenechang]

What does this PR do?

• Move RBACs only used in enabledefault feature into enabledefault/rbac.go
• Move configmap only used in enabledefault feature into enabledefault/configmap.go
• Move most items from github.com/DataDog/datadog-operator/controllers/datadogagent/component/utils.go to github.com/DataDog/datadog-operator/controllers/datadogagent/common, and have this package be "lowest" (doesn't import from most other operator packages)
• Move network-related methods into github.com/DataDog/datadog-operator/controllers/datadogagent/component/objects , since one of these methods requires importing from the component files. Unfortunately can't group it with the volume functions because that results in a dependency loop.

Planned future work: see if we can consolidate common files

Motivation

What inspired you to submit this pull request?

Additional Notes

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Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

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Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 34.75027% with 614 lines in your changes missing coverage. Please review.

Project coverage is 47.13%. Comparing base (4d6eaaf) to head (5e772b0).

Files	Patch %	Lines
...rollers/datadogagent/feature/enabledefault/rbac.go	0.00%	239 Missing ⚠️
...rs/datadogagent/feature/enabledefault/configmap.go	0.00%	223 Missing ⚠️
...ontrollers/datadogagent/component/agent/default.go	0.00%	97 Missing ⚠️
...adogagent/component/clusterchecksrunner/default.go	6.66%	14 Missing ⚠️
controllers/datadogagent/common/utils.go	83.33%	11 Missing and 2 partials ⚠️
...lers/datadogagent/feature/enabledefault/feature.go	20.00%	8 Missing ⚠️
...rs/datadogagent/feature/externalmetrics/feature.go	55.55%	4 Missing ⚠️
controllers/datadogagent/feature/otlp/feature.go	0.00%	1 Missing and 2 partials ⚠️
controllers/datadogagent/component/agent/new.go	0.00%	2 Missing ⚠️
...ers/datadogagent/component/clusteragent/default.go	92.30%	2 Missing ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1351      +/-   ##
==========================================
- Coverage   47.18%   47.13%   -0.06%     
==========================================
  Files         215      217       +2     
  Lines       18702    18714      +12     
==========================================
- Hits         8824     8820       -4     
- Misses       9411     9427      +16     
  Partials      467      467              

Flag	Coverage Δ
unittests	47.13% <34.75%> (-0.06%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
controllers/datadogagent/common/volumes.go	100.00% <100.00%> (ø)
...llers/datadogagent/component/clusteragent/utils.go	0.00% <ø> (-12.73%)	⬇️
...rollers/datadogagent/controller_reconcile_agent.go	53.44% <100.00%> (ø)
controllers/datadogagent/dependencies/store.go	64.47% <100.00%> (ø)
...lers/datadogagent/feature/clusterchecks/feature.go	62.04% <100.00%> (ø)
...tadogagent/feature/orchestratorexplorer/feature.go	79.23% <100.00%> (ø)
controllers/datadogagent/feature/utils/utils.go	100.00% <100.00%> (ø)
controllers/datadogagent/override/dependencies.go	54.05% <100.00%> (+1.27%)	⬆️
...trollers/datadogagent/component/objects/network.go	3.31% <75.00%> (ø)
controllers/datadogagent/component/agent/new.go	4.00% <0.00%> (ø)
... and 13 more

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