support bazel complie this project and format code.

basic_content/bit/bit.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+
+using namespace std;
+struct stuff {
+  unsigned int field1 : 30;
+  unsigned int : 2;
+  unsigned int field2 : 4;
+  unsigned int : 0;
+  unsigned int field3 : 3;
+};
+int main() {
+  struct stuff s = {1, 3, 5};
+  cout << s.field1 << endl;
+  cout << s.field2 << endl;
+  cout << s.field3 << endl;
+  cout << sizeof(s) << endl;
+  return 0;
+}