chore: Refactoring OpenShift Initial user reconciler

[tolusha]

What does this PR do?

Refactoring OpenShift Initial user reconciler

Screenshot/screencast of this PR

N/A

What issues does this PR fix or reference?

N/A

How to test this PR?

N/A

PR Checklist

As the author of this Pull Request I made sure that:

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• Custom resource definition file is up to date
• OLM bundles are up to date
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[tolusha]

@mmorhun @AndrienkoAleksandr
Remarks addressed.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: AndrienkoAleksandr, tolusha

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[openshift-ci]

New changes are detected. LGTM label has been removed.

[AndrienkoAleksandr]

/retest

[codecov]

Codecov Report

Merging #1152 (ccd7d26) into main (cb17fce) will decrease coverage by 0.02%.
The diff coverage is 52.13%.

@@            Coverage Diff             @@
##             main    #1152      +/-   ##
==========================================
- Coverage   57.39%   57.37%   -0.03%     
==========================================
  Files          74       75       +1     
  Lines        8645     8631      -14     
==========================================
- Hits         4962     4952      -10     
+ Misses       3143     3140       -3     
+ Partials      540      539       -1     

Impacted Files	Coverage Δ
controllers/che/checluster_validator.go	0.00% <0.00%> (ø)
pkg/deploy/identity-provider/identity_provider.go	10.23% <0.00%> (ø)
pkg/deploy/reconcile_manager.go	61.53% <0.00%> (ø)
pkg/util/util.go	14.54% <0.00%> (+0.25%)	⬆️
pkg/deploy/openshift-oauth/openshiftoauth_user.go	44.96% <44.96%> (ø)
pkg/deploy/openshift-oauth/openshiftoauth_util.go	60.00% <60.00%> (ø)
pkg/deploy/image-puller/imagepuller.go	62.12% <70.00%> (ø)
controllers/che/checluster_controller.go	26.73% <86.66%> (+2.03%)	⬆️
pkg/deploy/server/server_configmap.go	84.89% <100.00%> (ø)
pkg/deploy/test_util.go	100.00% <100.00%> (ø)
... and 2 more

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