Move package declaration

protos/tutorial/addressbook.proto

@@ -1,11 +1,11 @@
+package tutorial;
+ 
 import "google/protobuf/csharp_options.proto";
 import "google/protobuf/descriptor.proto";
 
 option (google.protobuf.csharp_file_options).namespace = "Google.ProtocolBuffers.Examples.AddressBook";
 option (google.protobuf.csharp_file_options).umbrella_classname = "AddressBookProtos";
 
-package tutorial;
- 
 option optimize_for = SPEED;
 
 message Person {