feat: ZPA API Client Restructure

[willguibr]

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Description

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Has your change been tested?

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Types of changes

What sort of change does your code introduce/modify?

• [x] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [x] This change is using publicly documented and stable APIs.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 77.07692% with 149 lines in your changes missing coverage. Please review.

Project coverage is 57.98%. Comparing base (ec4afdd) to head (931ff97).

Files	Patch %	Lines
zdx/services/troubleshooting/analysis/analysis.go	0.00%	19 Missing :warning:
...onnectorcontroller/zpa_app_connector_controller.go	0.00%	16 Missing :warning:
...ediatecacertificates/intermediatecacertificates.go	21.05%	15 Missing :warning:
zdx/services/alerts/alerts.go	50.00%	10 Missing and 3 partials :warning:
.../reports/applications/application_score_metrics.go	66.66%	7 Missing and 1 partial :warning:
...dx/services/troubleshooting/deeptrace/deeptrace.go	69.23%	4 Missing and 4 partials :warning:
...ervices/adminuserrolemgmt/adminroles/adminroles.go	22.22%	7 Missing :warning:
zdx/services/reports/devices/device_web_probes.go	66.66%	5 Missing :warning:
...n/services/locationmanagement/location/location.go	33.33%	4 Missing :warning:
...con/services/provisioning/api_keys/provisioning.go	0.00%	4 Missing :warning:
... and 26 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #258 +/- ## ========================================== + Coverage 53.17% 57.98% +4.81% ========================================== Files 279 172 -107 Lines 6782 6410 -372 ========================================== + Hits 3606 3717 +111 + Misses 2691 2172 -519 - Partials 485 521 +36 ```

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