Add braces to C++ single-line loops and conditionals (NFC) (#2973)

This makes code easier to read and more consistent between C++ and Java.
Also update clang-format settings to always add a line break (even if no braces are used).

wpilibc/src/main/native/cpp/Timer.cpp

@@ -8,23 +8,37 @@
 
 namespace frc {
 
-void Wait(double seconds) { frc2::Wait(units::second_t(seconds)); }
+void Wait(double seconds) {
+  frc2::Wait(units::second_t(seconds));
+}
 
-double GetTime() { return frc2::GetTime().to<double>(); }
+double GetTime() {
+  return frc2::GetTime().to<double>();
+}
 
 }  // namespace frc
 
 using namespace frc;
 
-Timer::Timer() { Reset(); }
+Timer::Timer() {
+  Reset();
+}
 
-double Timer::Get() const { return m_timer.Get().to<double>(); }
+double Timer::Get() const {
+  return m_timer.Get().to<double>();
+}
 
-void Timer::Reset() { m_timer.Reset(); }
+void Timer::Reset() {
+  m_timer.Reset();
+}
 
-void Timer::Start() { m_timer.Start(); }
+void Timer::Start() {
+  m_timer.Start();
+}
 
-void Timer::Stop() { m_timer.Stop(); }
+void Timer::Stop() {
+  m_timer.Stop();
+}
 
 bool Timer::HasPeriodPassed(double period) {
   return m_timer.HasPeriodPassed(units::second_t(period));