Converted drivetrain to codegen coeffs at buildtime

Change-Id: I41a77751f71d2f990ac49b19c85bc166b10a563b
diff --git a/y2014_bot3/control_loops/python/BUILD b/y2014_bot3/control_loops/python/BUILD
new file mode 100644
index 0000000..bb8dc29
--- /dev/null
+++ b/y2014_bot3/control_loops/python/BUILD
@@ -0,0 +1,12 @@
+package(default_visibility = ['//y2014_bot3:__subpackages__'])
+
+py_binary(
+  name = 'drivetrain',
+  srcs = [
+    'drivetrain.py',
+  ],
+  deps = [
+    '//external:python-glog',
+    '//frc971/control_loops/python:controls',
+  ]
+)