Add camera_frame log to 2019

Change-Id: Ia5622a9ebdea7e659f922414085b6301a38aae57
diff --git a/y2019/wpilib_interface.cc b/y2019/wpilib_interface.cc
index 564e8e1..a66f784 100644
--- a/y2019/wpilib_interface.cc
+++ b/y2019/wpilib_interface.cc
@@ -334,6 +334,7 @@
         to_send->targets[i].skew = received.targets[i].skew;
       }
       to_send->camera = received.camera_index;
+      LOG_STRUCT(DEBUG, "camera_frames", *to_send);
       to_send.Send();
     }