fix doc, add aws permissions for sns topics

doc/cmd/scan/supported_resources/aws.md

@@ -130,6 +130,9 @@ As AWS documentation recommends, the below policy is granting only the permissio
                 "sqs:GetQueueAttributes",
                 "sqs:ListQueueTags",
                 "sqs:ListQueues"
+                "sns:ListTopics",
+                "sns:GetTopicAttributes",
+                "sns:ListTagsForResource"
             ]
         }
     ]
@@ -245,3 +248,10 @@ As AWS documentation recommends, the below policy is granting only the permissio
 
 - [x] aws_sqs_queue
 - [x] aws_sqs_queue_policy
+
+## SNS
+- [x] aws_sns_topic
+- [ ] aws_sns_topic_policy
+- [ ] aws_sns_topic_subscription
+- [ ] aws_sns_platform_application
+- [ ] aws_sns_sms_preferences

pkg/remote/aws/repository/sns_repository.go

@@ -10,17 +10,17 @@ type SNSRepository interface {
 	ListAllTopics() ([]*sns.Topic, error)
 }
 
-type snsRepositoryImpl struct {
+type snsRepository struct {
 	client snsiface.SNSAPI
 }
 
-func NewSNSClient(session *session.Session) *snsRepositoryImpl {
-	return &snsRepositoryImpl{
+func NewSNSClient(session *session.Session) *snsRepository {
+	return &snsRepository{
 		sns.New(session),
 	}
 }
 
-func (r *snsRepositoryImpl) ListAllTopics() ([]*sns.Topic, error) {
+func (r *snsRepository) ListAllTopics() ([]*sns.Topic, error) {
 	var topics []*sns.Topic
 	input := &sns.ListTopicsInput{}
 	err := r.client.ListTopicsPages(input, func(res *sns.ListTopicsOutput, lastPage bool) bool {

pkg/remote/aws/repository/sns_repository_test.go

@@ -15,7 +15,7 @@ import (
 	"github.com/aws/aws-sdk-go/service/sns"
 )
 
-func Test_snsRepositoryImpl_ListAllTopics(t *testing.T) {
+func Test_snsRepository_ListAllTopics(t *testing.T) {
 
 	tests := []struct {
 		name    string
@@ -60,7 +60,7 @@ func Test_snsRepositoryImpl_ListAllTopics(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			client := &mocks.SNSClient{}
 			tt.mocks(client)
-			r := &snsRepositoryImpl{
+			r := &snsRepository{
 				client: client,
 			}
 			got, err := r.ListAllTopics()