support bazel complie this project and format code.

codingStyleIdioms/1_classInitializers/1.3_const.cpp

@@ -0,0 +1,21 @@
+/* 1.3_类中const数据成员、引用数据成员.cpp */
+//
+// Created by light on 19-12-9.
+//
+
+#include <iostream>
+
+class Animal {
+public:
+    Animal(int age,std::string name):age_(age),name_(name) {
+        std::cout << "Animal(int age) is called" << std::endl;
+    }
+private:
+    int &age_;
+    const std::string name_;
+};
+
+int main() {
+    Animal animal(10,"hh");
+    return 0;
+}