moved services in proper services

tests/fileservice_test.ts

@@ -5,7 +5,7 @@ import {
   DenoKVFileService,
   FileMetaData,
   FileService,
-} from "../src/fileservice.ts";
+} from "../src/services/mod.ts";
 import { asyncIterableToArray } from "../src/utils.ts";
 import { generateLargeText } from "./utils.ts";
 import { StringReader } from "https://deno.land/std@0.191.0/io/mod.ts";