feat: add enable/disable event grpc endpoint

[josedonizetti]

1. Explain what the PR does

This PR is part of GRPC API. It adds the implementation grpc endpoint to enable/disable event.

2. Explain how to test it

Enable event:

func main() {
	var opts []grpc.DialOption
	opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()))

	conn, err := grpc.Dial(":4466", opts...)
	if err != nil {
		log.Fatalf("fail to dial: %v", err)
	}

	client := pb.NewTraceeServiceClient(conn)
	in := &pb.EnableEventRequest{
		Name: "sched_process_exec",
	}

	_, err = client.EnableEvent(context.Background(), in)
	if err != nil {
		log.Fatal(err)
	}
}

Disable event:

func main() {
	var opts []grpc.DialOption
	opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()))

	conn, err := grpc.Dial(":4466", opts...)
	if err != nil {
		log.Fatalf("fail to dial: %v", err)
	}

	client := pb.NewTraceeServiceClient(conn)

	in := &pb.DisableEventRequest{
		Name: "sched_process_exec",
	}

	_, err = client.DisableEvent(context.Background(), in)
	if err != nil {
		log.Fatal(err)
	}
}

[geyslan]

Going to test it.

[geyslan]

LGTM. Tested and works smoothly.