chore: add graphql files

Author: lawmicha

Tests/IntegrationTestApp/graphql/CreateTodo.graphql

@@ -0,0 +1,9 @@
+mutation CreateTodo($createTodoInput: CreateTodoInput!) {
+  createTodo(input: $createTodoInput) {
+    id
+    updatedAt
+    createdAt
+    content
+    owner
+  }
+}

Tests/IntegrationTestApp/graphql/SubscribeTodo.graphql

@@ -0,0 +1,9 @@
+subscription onCreateSubscription {
+  onCreateTodo {
+    id
+    updatedAt
+    createdAt
+    content
+    owner
+  }
+}

Tests/IntegrationTestApp/graphql/TodoList.graphql

@@ -0,0 +1,12 @@
+query MyQuery {
+  listTodos {
+    items {
+      id
+      updatedAt
+      createdAt
+      content
+      owner
+    }
+    nextToken
+  }
+}