Adding promised angle and distance computations.

Change-Id: Icd2c404da6d7484d3f58e109a6c6072684bf3850
diff --git a/y2017/vision/BUILD b/y2017/vision/BUILD
index c7b4b7e..14811d9 100644
--- a/y2017/vision/BUILD
+++ b/y2017/vision/BUILD
@@ -64,6 +64,7 @@
     '//aos/vision/events:udp',
     ':vision_queue',
     ':vision_result',
+    ':target_finder',
     '//aos/common:mutex',
   ],
 )