feat: add peer and storage package file (#9)

Signed-off-by: Gaius <gaius.qi@gmail.com>

src/lib.rs

@@ -15,4 +15,5 @@
  */
 
 pub mod config;
-pub mod daemon;
+pub mod peer;
+pub mod storage;

src/storage/mod.rs

@@ -0,0 +1,15 @@
+/*
+ *     Copyright 2023 The Dragonfly Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */