Print out the wpilib loop names and priorities on startup.

I'm tired of debugging what is running at what level...  Let's just
print them all out to make it easy.

Change-Id: I460ddabf6541b62c77ad4457e47df2fb61128ed8
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/frc971/wpilib/wpilib_robot_base.h b/frc971/wpilib/wpilib_robot_base.h
index bcde100..6b9e5c5 100644
--- a/frc971/wpilib/wpilib_robot_base.h
+++ b/frc971/wpilib/wpilib_robot_base.h
@@ -20,8 +20,14 @@
 
     ::std::vector<::std::thread> threads;
     for (size_t i = 1; i < loops_.size(); ++i) {
-      threads.emplace_back([this, i]() { loops_[i]->Run(); });
+      threads.emplace_back([this, i]() {
+        LOG(INFO) << "Starting " << loops_[i]->name() << " with priority "
+                  << loops_[i]->runtime_realtime_priority();
+        loops_[i]->Run();
+      });
     }
+    LOG(INFO) << "Starting " << loops_[0]->name() << " with priority "
+              << loops_[0]->runtime_realtime_priority();
     // Save some memory and run the last one in the main thread.
     loops_[0]->Run();