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/shuffleboard/LayoutType.cpp

@@ -6,4 +6,6 @@
 
 using namespace frc;
 
-wpi::StringRef LayoutType::GetLayoutName() const { return m_layoutName; }
+wpi::StringRef LayoutType::GetLayoutName() const {
+  return m_layoutName;
+}

wpilibc/src/main/native/cpp/shuffleboard/Shuffleboard.cpp

@@ -10,13 +10,17 @@
 
 using namespace frc;
 
-void Shuffleboard::Update() { GetInstance().Update(); }
+void Shuffleboard::Update() {
+  GetInstance().Update();
+}
 
 ShuffleboardTab& Shuffleboard::GetTab(wpi::StringRef title) {
   return GetInstance().GetTab(title);
 }
 
-void Shuffleboard::SelectTab(int index) { GetInstance().SelectTab(index); }
+void Shuffleboard::SelectTab(int index) {
+  GetInstance().SelectTab(index);
+}
 
 void Shuffleboard::SelectTab(wpi::StringRef title) {
   GetInstance().SelectTab(title);
@@ -36,7 +40,9 @@ void Shuffleboard::StartRecording() {
   GetRecordingController().StartRecording();
 }
 
-void Shuffleboard::StopRecording() { GetRecordingController().StopRecording(); }
+void Shuffleboard::StopRecording() {
+  GetRecordingController().StopRecording();
+}
 
 void Shuffleboard::SetRecordingFileNameFormat(wpi::StringRef format) {
   GetRecordingController().SetRecordingFileNameFormat(format);

wpilibc/src/main/native/cpp/shuffleboard/ShuffleboardComponentBase.cpp

@@ -65,7 +65,9 @@ ShuffleboardContainer& ShuffleboardComponentBase::GetParent() {
   return m_parent;
 }
 
-const std::string& ShuffleboardComponentBase::GetType() const { return m_type; }
+const std::string& ShuffleboardComponentBase::GetType() const {
+  return m_type;
+}
 
 const wpi::StringMap<std::shared_ptr<nt::Value>>&
 ShuffleboardComponentBase::GetProperties() const {

wpilibc/src/main/native/cpp/shuffleboard/ShuffleboardTab.cpp

@@ -9,7 +9,9 @@ using namespace frc;
 ShuffleboardTab::ShuffleboardTab(ShuffleboardRoot& root, wpi::StringRef title)
     : ShuffleboardValue(title), ShuffleboardContainer(title), m_root(root) {}
 
-ShuffleboardRoot& ShuffleboardTab::GetRoot() { return m_root; }
+ShuffleboardRoot& ShuffleboardTab::GetRoot() {
+  return m_root;
+}
 
 void ShuffleboardTab::BuildInto(std::shared_ptr<nt::NetworkTable> parentTable,
                                 std::shared_ptr<nt::NetworkTable> metaTable) {

wpilibc/src/main/native/cpp/shuffleboard/WidgetType.cpp

@@ -6,4 +6,6 @@
 
 using namespace frc;
 
-wpi::StringRef WidgetType::GetWidgetName() const { return m_widgetName; }
+wpi::StringRef WidgetType::GetWidgetName() const {
+  return m_widgetName;
+}