Automatically generate claw constants.

Change-Id: I35d15b34e6ae8349b009cd636d5e3962f1c6af5c
diff --git a/y2014/control_loops/python/BUILD b/y2014/control_loops/python/BUILD
index 232d128..ee99aa4 100644
--- a/y2014/control_loops/python/BUILD
+++ b/y2014/control_loops/python/BUILD
@@ -7,5 +7,27 @@
   ],
   deps = [
     '//frc971/control_loops/python:controls',
+  ],
+)
+
+py_library(
+  name = 'polydrivetrain',
+  srcs = [
+    'polydrivetrain.py',
+    'drivetrain.py',
+  ],
+  deps = [
+    '//frc971/control_loops/python:controls',
+  ],
+)
+
+py_binary(
+  name = 'claw',
+  srcs = [
+    'claw.py',
+  ],
+  deps = [
+    ':polydrivetrain',
+    '//frc971/control_loops/python:controls',
   ]
 )