Added flatbuffer messages for intake and 4-bar.

Change-Id: I2b9523a46d973cca41b578e525d449c1d348c0b0
diff --git a/y2020/control_loops/superstructure/superstructure_output.fbs b/y2020/control_loops/superstructure/superstructure_output.fbs
index e245712..e887cf5 100644
--- a/y2020/control_loops/superstructure/superstructure_output.fbs
+++ b/y2020/control_loops/superstructure/superstructure_output.fbs
@@ -3,6 +3,12 @@
 table Output {
   // Votage sent to the hood. Positive moves up.
   hood_voltage:double;
+
+  // Voltage sent to motors on intake joint. Positive extends rollers.
+  intake_joint_voltage:double;
+
+  // Voltage sent to rollers on intake. Positive rolls inward.
+  intake_roller_voltage:double;
 }
 
 root_type Output;