Add cpp examples (#659)

* Added C++ robot project examples and set up sub .clang-format for them

* Ran formatter

wpilibcExamples/src/main/cpp/templates/commandbased/RobotMap.h

@@ -0,0 +1,25 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017 FIRST. All Rights Reserved.                             */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+/**
+ * The RobotMap is a mapping from the ports sensors and actuators are wired into
+ * to a variable name. This provides flexibility changing wiring, makes checking
+ * the wiring easier and significantly reduces the number of magic numbers
+ * floating around.
+ */
+
+// For example to map the left and right motors, you could define the
+// following variables to use with your drivetrain subsystem.
+// constexpr int LEFTMOTOR = 1;
+// constexpr int RIGHTMOTOR = 2;
+
+// If you are using multiple modules, make sure to define both the port
+// number and the module. For example you with a rangefinder:
+// constexpr int RANGE_FINDER_PORT = 1;
+// constexpr int RANGE_FINDER_MODULE = 1;