feat: implement KongLicense controller and inject to translator

[randmonkey]

What this PR does / why we need it:

The PR implements a KongLicense controller which picks the newest KongLicense in the cluster and provides a GetLicense method for translator to inject Kong license into Kong configurations.
The controller is enabled when --enable-controller-kong-license is set to true (by default) and sync license with Konnect disabled. When sync license with Konnect is enabled, the licenses from Konnect takes the precedence.

Which issue this PR fixes:

Major part of #5437.
Special notes for your reviewer:

Not fully finished yet, but can reconcile KongLicense resources and ready to receive some reviews. Major remaining part:

• When no KongLicense CRD in cluster, the controller will exit abnormally
• Maybe add validation of KongLicense?
• Disable applying to Kong gateway when it is OSS (in another issue/PR?)

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

Attention: 161 lines in your changes are missing coverage. Please review.

Comparison is base (1a1bbfc) 71.8% compared to head (c844423) 71.2%.
Report is 10 commits behind head on main.

Files	Patch %	Lines
...ontrollers/configuration/konglicense_controller.go	23.0%	138 Missing and 2 partials ⚠️
internal/manager/setup.go	47.0%	16 Missing and 2 partials ⚠️
internal/manager/run.go	78.5%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #5514     +/-   ##
=======================================
- Coverage   71.8%   71.2%   -0.6%     
=======================================
  Files        176     177      +1     
  Lines      18085   18301    +216     
=======================================
+ Hits       12986   13042     +56     
- Misses      4157    4306    +149     
- Partials     942     953     +11     

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[czeslavo]

BTW it might make sense to not include integration tests and translator code in this PR to not make it bigger as it's already 2k+ lines. :)

[team-k8s-bot]

E2E (targeted) tests with KIND-based clusters were started at https://github.com/Kong/kubernetes-ingress-controller/actions/runs/7795253842