message: Auth: add custom email and sms sender triggers
diff: @@ -9,7 +9,9 @@ import { Permissions, attachPermissionsToRole } from "./util/permission";
  const AuthUserPoolTriggerOperationMapping = {
  createAuthChallenge: cognito.UserPoolOperation.CREATE_AUTH_CHALLENGE,
  + customEmailSender: cognito.UserPoolOperation.CUSTOM_EMAIL_SENDER,
  customMessage: cognito.UserPoolOperation.CUSTOM_MESSAGE,
  + customSmsSender: cognito.UserPoolOperation.CUSTOM_SMS_SENDER,
  defineAuthChallenge: cognito.UserPoolOperation.DEFINE_AUTH_CHALLENGE,
  postAuthentication: cognito.UserPoolOperation.POST_AUTHENTICATION,
  postConfirmation: cognito.UserPoolOperation.POST_CONFIRMATION,
  @@ -51,7 +53,9 @@ export interface AuthCognitoProps {
  export interface AuthUserPoolTriggers {
  readonly createAuthChallenge?: FunctionDefinition;
  + readonly customEmailSender?: FunctionDefinition;
  readonly customMessage?: FunctionDefinition;
  + readonly customSmsSender?: FunctionDefinition;
  readonly defineAuthChallenge?: FunctionDefinition;
  readonly postAuthentication?: FunctionDefinition;
  readonly postConfirmation?: FunctionDefinition;
  