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/simulation/JoystickSim.cpp

@@ -55,6 +55,10 @@ void JoystickSim::SetThrottle(double value) {
              value);
 }
 
-void JoystickSim::SetTrigger(bool state) { SetRawButton(1, state); }
+void JoystickSim::SetTrigger(bool state) {
+  SetRawButton(1, state);
+}
 
-void JoystickSim::SetTop(bool state) { SetRawButton(2, state); }
+void JoystickSim::SetTop(bool state) {
+  SetRawButton(2, state);
+}