修改pom.xml文件,新增各子系统接口文件

Change-Id: I24a0654e38c108a3931c95f0b28c4fd766f9e73c
diff --git a/src/main/java/api/ApiInterface.java b/src/main/java/api/ApiInterface.java
new file mode 100644
index 0000000..495226d
--- /dev/null
+++ b/src/main/java/api/ApiInterface.java
@@ -0,0 +1,5 @@
+package api;
+
+public interface ApiInterface {
+    
+}
\ No newline at end of file