Index more sqlite cache fields (#271)

* Add more fields to index when sql-caching is on.

Misc changes:
- Use the builtin Event class, not events.k8s.io (by looking at the dashboard client code)
- Specify full path to the management.cattle.io fields.
- Map `Event.type` to `Event._type` for indexing.

Use a compound transform-func to first check for a "signal",
and then to run all the relevant transformers until either
one fails or the list is exhausted.

- Includes moving the fakeSummaryCache type into a common area.

Use a simpler way of running transforms.

* Inline the function to get the gvk key.

* Create a '--sql-cache' flag to turn on caching for the steve CLI.

* Improve error-handling in object transformer.

* Drop the 'GetTransform' function.

* Inline the code that transforms a payload into a k8s-unstructured object.

pkg/resources/virtual/common/common.go

@@ -10,7 +10,6 @@ import (
 	wranglerSummary "github.com/rancher/wrangler/v3/pkg/summary"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/client-go/tools/cache"
 )
 
 // SummaryCache provides an interface to get a summary/relationships for an object. Implemented by the summaryCache
@@ -24,26 +23,14 @@ type DefaultFields struct {
 	Cache SummaryCache
 }
 
-// GetTransform produces the default transformation func
-func (d *DefaultFields) GetTransform() cache.TransformFunc {
-	return d.transform
-}
-
-// transform implements virtual.VirtualTransformFunc, and adds reserved fields/summary
-func (d *DefaultFields) transform(obj any) (any, error) {
-	raw, isSignal, err := getUnstructured(obj)
-	if isSignal {
-		return obj, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	raw = addIDField(raw)
-	raw, err = addSummaryFields(raw, d.Cache)
+// TransformCommon implements virtual.VirtualTransformFunc, and adds reserved fields/summary
+func (d *DefaultFields) TransformCommon(obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
+	obj = addIDField(obj)
+	obj, err := addSummaryFields(obj, d.Cache)
 	if err != nil {
 		return nil, fmt.Errorf("unable to add summary fields: %w", err)
 	}
-	return raw, nil
+	return obj, nil
 }
 
 // addSummaryFields adds the virtual fields for object state.