Added stuff to make shooter work.

Doesn't seem to start running when deployed to the robot.
diff --git a/bot3/control_loops/shooter/shooter_main.cc b/bot3/control_loops/shooter/shooter_main.cc
new file mode 100644
index 0000000..9907cfe
--- /dev/null
+++ b/bot3/control_loops/shooter/shooter_main.cc
@@ -0,0 +1,11 @@
+#include "bot3/control_loops/shooter/shooter.h"
+
+#include "aos/atom_code/init.h"
+
+int main() {
+  ::aos::Init();
+  bot3::control_loops::ShooterMotor shooter;
+  shooter.Run();
+  ::aos::Cleanup();
+  return 0;
+}