* NET-6426 Create ProxyStateTemplate when reconciling MeshGateway resource
* Add TODO for switching fetch method based on gateway type
* Use gateway-kind in workload metadata instead of owner reference
* Create ProxyStateTemplate builder for gatewayproxy controller
* Update to use new controller interface
* Add copyright headers
* Set correct name for ProxyStateTemplate identity reference
* Generate empty ProxyStateTemplate by fetching MeshGateway
This cheats and looks up the MeshGateway directly. In the future, we will need a Workload => xGateway mapper
* Specify owner reference when writing ProxyStateTemplate
* Update dependency mapper to account for multiple controllers per resource type
* Regenerate v2 resource dependencies map
* Add helpful trace logs, tag TODOs with ticket identifiers
Nathan Coleman