Introduce k8s CRD/Operator for Capsules

[andersjohnsen]

This issue will be an ongoing tracking issue with regards to what is missing on the Capsule operator implementation.

• Add webhook config to helm chart ✨ Add CRD webhook support  #111
• Add validation for file mounting config 🦺 Add validation for mounted files #96
• Figure out how to use the rig logger with the improvements from controller-runtime as the controller-runtime logger
• Check for loadbalancer resource ownership in test ✅ Add test for resource ownership on loadbalancer #100
• Simplify folder path for integration test 🚚 Remove some of the folder nesting for controller test #102
• Add integration test for webhooks ✅ Add tests for validation and defaulting  #127
• Add cluster.Gateway implementation which uses CRD 🎨 Move Capsule config to clusters #91
• 🩺 Add support for health probes #176
• Add Capabilities API ✨ Add capabilities GRPC API #173
• Run integration tests in CI ✅ Run integration tests in CI #101
• Make standalone binary ✨ Add rig-operator binary #134
• Setup goreleaser for releases of operator 📦️ Add goreleaser files for rig-operator #135
• Make helmchart for deployment 📦️ Add rig-operator helm chart #152
• Certificates are not auto-created when TLS is enabled ✨ Add support for certificates #158
• Config files are not mounted ✨ Support config files in Capsule operator #156

[andersjohnsen]

First change is in #90.

[blacksails]

Added an issue for health probe support