Namespace all wpilibc functions/classes into "frc" namespace. (#311)

Base.h provides a backwards compatibility shim (enabled unless
NAMESPACED_WPILIB is defined) that does a "using namespace frc".
However, as some header files do not include Base.h, this may
be a breaking change in some corner cases (with an easy fix).

Fixes #218.

wpilibcIntegrationTests/src/AnalogLoopTest.cpp

@@ -13,6 +13,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kDelayTime = 0.01;
 
 /**

wpilibcIntegrationTests/src/AnalogPotentiometerTest.cpp

@@ -13,6 +13,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kScale = 270.0;
 static const double kAngle = 180.0;
 

wpilibcIntegrationTests/src/BuiltInAccelerometerTest.cpp

@@ -10,6 +10,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static constexpr double kAccelerationTolerance = 0.1;
 /**
  * There's not much we can automatically test with the on-board accelerometer,

wpilibcIntegrationTests/src/CircularBufferTest.cpp

@@ -11,6 +11,8 @@
 
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const std::array<double, 10> values = {
     751.848, 766.366, 342.657, 234.252, 716.126,
     132.344, 445.697, 22.727,  421.125, 799.913};

wpilibcIntegrationTests/src/CounterTest.cpp

@@ -14,6 +14,8 @@
 #include "Victor.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kMotorDelay = 2.5;
 
 static const double kMaxPeriod = 2.0;

wpilibcIntegrationTests/src/DIOLoopTest.cpp

@@ -14,6 +14,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kCounterTime = 0.001;
 
 static const double kDelayTime = 0.1;

wpilibcIntegrationTests/src/DigitalGlitchFilterTest.cpp

@@ -12,6 +12,8 @@
 #include "Encoder.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 /**
  * Tests that configuring inputs to be filtered succeeds.
  *

wpilibcIntegrationTests/src/DriverStationTest.cpp

@@ -11,6 +11,8 @@
 #include "Utility.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 constexpr double TIMER_TOLERANCE = 0.2;
 constexpr int64_t TIMER_RUNTIME = 1000000;  // 1 second
 

wpilibcIntegrationTests/src/FakeEncoderTest.cpp

@@ -14,6 +14,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kDelayTime = 0.001;
 
 class FakeEncoderTest : public testing::Test {

wpilibcIntegrationTests/src/FilterNoiseTest.cpp

@@ -17,6 +17,8 @@
 #include "TestBench.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 enum FilterNoiseTestType { TEST_SINGLE_POLE_IIR, TEST_MOVAVG };
 
 std::ostream& operator<<(std::ostream& os, const FilterNoiseTestType& type) {

wpilibcIntegrationTests/src/FilterOutputTest.cpp

@@ -17,6 +17,8 @@
 #include "TestBench.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 enum FilterOutputTestType { TEST_SINGLE_POLE_IIR, TEST_HIGH_PASS, TEST_MOVAVG };
 
 std::ostream& operator<<(std::ostream& os, const FilterOutputTestType& type) {

wpilibcIntegrationTests/src/MotorEncoderTest.cpp

@@ -14,6 +14,8 @@
 #include "Victor.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 enum MotorEncoderTestType { TEST_VICTOR, TEST_JAGUAR, TEST_TALON };
 
 std::ostream& operator<<(std::ostream& os, MotorEncoderTestType const& type) {

wpilibcIntegrationTests/src/MotorInvertingTest.cpp

@@ -13,6 +13,8 @@
 #include "Victor.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 enum MotorInvertingTestType { TEST_VICTOR, TEST_JAGUAR, TEST_TALON };
 static const double motorSpeed = 0.15;
 static const double delayTime = 0.5;

wpilibcIntegrationTests/src/NotifierTest.cpp

@@ -11,6 +11,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 unsigned notifierCounter;
 
 void notifierHandler(void*) { notifierCounter++; }

wpilibcIntegrationTests/src/PCMTest.cpp

@@ -15,6 +15,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 /* The PCM switches the compressor up to a couple seconds after the pressure
         switch changes. */
 static const double kCompressorDelayTime = 3.0;

wpilibcIntegrationTests/src/PIDToleranceTest.cpp

@@ -12,6 +12,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 class PIDToleranceTest : public testing::Test {
  protected:
   const double setpoint = 50.0;

wpilibcIntegrationTests/src/PowerDistributionPanelTest.cpp

@@ -14,6 +14,8 @@
 #include "Victor.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kMotorTime = 0.25;
 
 class PowerDistributionPanelTest : public testing::Test {

wpilibcIntegrationTests/src/PreferencesTest.cpp

@@ -14,6 +14,8 @@
 #include "gtest/gtest.h"
 #include "ntcore.h"
 
+using namespace frc;
+
 static const char* kFileName = "networktables.ini";
 static const double kSaveTime = 1.2;
 

wpilibcIntegrationTests/src/RelayTest.cpp

@@ -12,6 +12,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kDelayTime = 0.01;
 
 class RelayTest : public testing::Test {

wpilibcIntegrationTests/src/TestEnvironment.cpp

@@ -13,6 +13,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 class TestEnvironment : public testing::Environment {
   bool m_alreadySetUp = false;
 

wpilibcIntegrationTests/src/TiltPanCameraTest.cpp

@@ -14,6 +14,8 @@
 #include "Timer.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static constexpr double kServoResetTime = 2.0;
 
 static constexpr double kTestAngle = 90.0;

wpilibcIntegrationTests/src/TimerTest.cpp

@@ -10,6 +10,8 @@
 #include "TestBench.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 static const double kWaitTime = 0.5;
 
 class TimerTest : public testing::Test {

wpilibcIntegrationTests/src/command/CommandTest.cpp

@@ -14,6 +14,8 @@
 #include "command/MockCommand.h"
 #include "gtest/gtest.h"
 
+using namespace frc;
+
 class CommandTest : public testing::Test {
  protected:
   void SetUp() override {

wpilibcIntegrationTests/src/command/MockCommand.cpp

@@ -7,6 +7,8 @@
 
 #include "command/MockCommand.h"
 
+using namespace frc;
+
 MockCommand::MockCommand() {
   m_initializeCount = 0;
   m_executeCount = 0;