Adds the Trigger template and adds WPILib.h import to all templates

Change-Id: Ibaecc4802822cf4c0a4a5bf9ddc960b96e40d1e9

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/resources/templates/command-based/Trigger.cpp

@@ -1,15 +1,12 @@
-// TODO: convert into C++ template
-#error "This is not a C++ file. I have no idea what this is doing here, so I'm leaving this message here to let someone else clean this up"
-import edu.wpi.first.wpilibj.command.Trigger;
+#include "$classname.h"
 
-/**
- * New and improved C++
- */
-public class $classname extends Trigger
+$classname::$classname()
 {
-public:
-	bool get()
-	{
-		return false;
-	}
+
 }
+
+bool $classname::Get()
+{
+	return false;
+}
+