Added Vacuum class and test

Change-Id: I4c25946b71a0054791a2fc1305eb8ef509a147b1
diff --git a/y2019/control_loops/superstructure/BUILD b/y2019/control_loops/superstructure/BUILD
index f55e1ad..00bacae 100644
--- a/y2019/control_loops/superstructure/BUILD
+++ b/y2019/control_loops/superstructure/BUILD
@@ -24,6 +24,7 @@
     ],
     deps = [
         ":collision_avoidance",
+        ":vacuum",
         ":superstructure_queue",
         "//aos/controls:control_loop",
         "//y2019:constants",
@@ -77,6 +78,20 @@
     ],
 )
 
+cc_library(
+    name = "vacuum",
+    srcs = [
+        "vacuum.cc",
+    ],
+    hdrs = [
+        "vacuum.h",
+    ],
+    deps = [
+        ":superstructure_queue",
+        "//aos/controls:control_loop"
+    ],
+)
+
 cc_test(
     name = "collision_avoidance_tests",
     srcs = [