Converted drivetrain to codegen coeffs at buildtime

Change-Id: I41a77751f71d2f990ac49b19c85bc166b10a563b
diff --git a/y2015_bot3/control_loops/python/BUILD b/y2015_bot3/control_loops/python/BUILD
index 663124f..346cafd 100644
--- a/y2015_bot3/control_loops/python/BUILD
+++ b/y2015_bot3/control_loops/python/BUILD
@@ -11,3 +11,14 @@
     '//frc971/control_loops/python:controls',
   ]
 )
+
+py_binary(
+  name = 'drivetrain',
+  srcs = [
+    'drivetrain.py',
+  ],
+  deps = [
+    '//external:python-glog',
+    '//frc971/control_loops/python:controls',
+  ]
+)