feat(handlers): Register actions for each resource type

This registers the ActionSets for each resource when the handler
packages are initialized. This then allows other packages to retrieve
the ActionSets for a given resource from the action package.

The initial consumer of this will be the ratelimit package so that it
can programmatically enumerate all of the valid combinations of a
resource and action.

This leaves a number of TODO to refactor the handler packages to also
retrieve the action sets from the registered actions instead of using a
package variable. This is left as a TODO since there is some
inconsistencies in how these package variables are used between the
handlers. For example a number of packages use a map of subtypes to
ActionSets which is then used withing the handler implementation. Others
use a map, but don't seem to use it at all. And others just use an
ActionSet.

internal/daemon/controller/handlers/managed_groups/managed_group_service.go

@@ -26,6 +26,7 @@ import (
 	"github.com/hashicorp/boundary/internal/types/subtypes"
 	pb "github.com/hashicorp/boundary/sdk/pbs/controller/api/resources/managedgroups"
 	"github.com/hashicorp/go-bexpr"
+	"golang.org/x/exp/maps"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/protobuf/types/known/wrapperspb"
 )
@@ -83,6 +84,9 @@ func init() {
 	); err != nil {
 		panic(err)
 	}
+
+	// TODO: refactor to remove IdActions and CollectionActions package variables
+	action.RegisterResource(resource.ManagedGroup, action.Union(maps.Values(IdActions)...), CollectionActions)
 }
 
 // Service handles request as described by the pbs.ManagedGroupServiceServer interface.