Kinds: Generate k8 resources without use kindys/thema (#83310)

Generate k8 resources reading cue file directly instead of use thema/kindsys binding

pkg/codegen/tmpl/core_resource.tmpl

@@ -28,6 +28,7 @@ func NewK8sResource(name string, s *Spec) K8sResource {
 // Resource is the wire representation of {{ .KindName }}.
 // It currently will soon be merged into the k8s flavor (TODO be better)
 type Resource struct {
-    {{- range .SubresourceNames }}
-	{{ . }} {{ . }} `json:"{{ . | ToLower }}"`{{end}}
+    Metadata Metadata `json:"metadata"`
+    Spec     Spec     `json:"spec"`
+    Status   Status   `json:"status"`
 }