Added turret and intake code and tests.

Tests are from Adam.

Change-Id: I5a89700cfe2e9983771b4523facc302243b5dc50
diff --git a/y2017/control_loops/superstructure/intake/BUILD b/y2017/control_loops/superstructure/intake/BUILD
index 68faeba..164a63b 100644
--- a/y2017/control_loops/superstructure/intake/BUILD
+++ b/y2017/control_loops/superstructure/intake/BUILD
@@ -27,3 +27,20 @@
     '//frc971/control_loops:state_feedback_loop',
   ],
 )
+
+cc_library(
+  name = 'intake',
+  visibility = ['//visibility:public'],
+  srcs = [
+    'intake.cc',
+  ],
+  hdrs = [
+    'intake.h',
+  ],
+  deps = [
+    ':intake_plants',
+    '//frc971/control_loops:profiled_subsystem',
+    '//y2017/control_loops/superstructure:superstructure_queue',
+    '//y2017:constants',
+  ],
+)