Fixed cpplint.py warnings (#215)

* Fixed cpplint.py [build/include_order] and [build/include_what_you_use] warnings
* Fixed cpplint.py [readability/casting] warnings
* Updated .styleguide format
* Fixed cpplint.py [build/header_guard] warnings

wpilibc/shared/include/Buttons/Trigger.h

@@ -8,6 +8,8 @@
 #pragma once
 
 #include <memory>
+#include <string>
+
 #include "SmartDashboard/Sendable.h"
 
 class Command;

wpilibc/shared/include/CircularBuffer.inc

@@ -5,6 +5,8 @@
 /* the project.                                                               */
 /*----------------------------------------------------------------------------*/
 
+#pragma once
+
 #include <algorithm>
 
 template <class T>

wpilibc/shared/include/Commands/CommandGroup.h

@@ -8,7 +8,9 @@
 #pragma once
 
 #include <list>
+#include <string>
 #include <vector>
+
 #include "Commands/Command.h"
 #include "Commands/CommandGroupEntry.h"
 

wpilibc/shared/include/Commands/PIDCommand.h

@@ -7,13 +7,14 @@
 
 #pragma once
 
+#include <memory>
+#include <string>
+
 #include "Commands/Command.h"
 #include "PIDController.h"
 #include "PIDOutput.h"
 #include "PIDSource.h"
 
-#include <memory>
-
 class PIDCommand : public Command, public PIDOutput, public PIDSource {
  public:
   PIDCommand(const std::string& name, double p, double i, double d);

wpilibc/shared/include/Commands/PIDSubsystem.h

@@ -7,13 +7,14 @@
 
 #pragma once
 
+#include <memory>
+#include <string>
+
 #include "Commands/Subsystem.h"
 #include "PIDController.h"
 #include "PIDOutput.h"
 #include "PIDSource.h"
 
-#include <memory>
-
 /**
  * This class is designed to handle the case where there is a {@link Subsystem}
  * which uses a single {@link PIDController} almost constantly (for instance,

wpilibc/shared/include/Commands/WaitCommand.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include <string>
+
 #include "Commands/Command.h"
 
 class WaitCommand : public Command {

wpilibc/shared/include/Commands/WaitForChildren.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include <string>
+
 #include "Commands/Command.h"
 
 class WaitForChildren : public Command {

wpilibc/shared/include/Commands/WaitUntilCommand.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include <string>
+
 #include "Commands/Command.h"
 
 class WaitUntilCommand : public Command {

wpilibc/shared/include/GyroBase.h

@@ -7,13 +7,14 @@
 
 #pragma once
 
+#include <memory>
+#include <string>
+
 #include "LiveWindow/LiveWindowSendable.h"
 #include "PIDSource.h"
 #include "SensorBase.h"
 #include "interfaces/Gyro.h"
 
-#include <memory>
-
 /**
  * GyroBase is the common base class for Gyro implementations such as
  * AnalogGyro.

wpilibc/shared/include/LiveWindow/LiveWindow.h

@@ -9,7 +9,9 @@
 
 #include <map>
 #include <memory>
+#include <string>
 #include <vector>
+
 #include "Commands/Scheduler.h"
 #include "LiveWindow/LiveWindowSendable.h"
 #include "tables/ITable.h"

wpilibc/shared/include/LiveWindow/LiveWindowStatusListener.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include <memory>
+
 #include "tables/ITable.h"
 #include "tables/ITableListener.h"
 

wpilibc/shared/include/PIDController.h

@@ -7,6 +7,11 @@
 
 #pragma once
 
+#include <atomic>
+#include <memory>
+#include <queue>
+#include <string>
+
 #include "Base.h"
 #include "Controller.h"
 #include "HAL/cpp/priority_mutex.h"
@@ -16,11 +21,6 @@
 #include "PIDSource.h"
 #include "Timer.h"
 
-#include <memory>
-
-#include <atomic>
-#include <queue>
-
 class PIDOutput;
 
 /**

wpilibc/shared/include/Resource.h

@@ -8,10 +8,12 @@
 #pragma once
 
 #include <stdint.h>
-#include <memory>
-#include <vector>
-#include "ErrorBase.h"
 
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "ErrorBase.h"
 #include "HAL/cpp/priority_mutex.h"
 
 /**

wpilibc/shared/include/SmartDashboard/SmartDashboard.h

@@ -8,7 +8,9 @@
 #pragma once
 
 #include <map>
+#include <memory>
 #include <string>
+
 #include "SensorBase.h"
 #include "SmartDashboard/NamedSendable.h"
 #include "SmartDashboard/Sendable.h"

wpilibc/shared/include/Task.inc

@@ -5,7 +5,12 @@
 /* the project.                                                               */
 /*----------------------------------------------------------------------------*/
 
+#pragma once
+
 #include <atomic>
+#include <string>
+#include <utility>
+
 #include "HAL/HAL.h"
 
 /**