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).

cameraserver/src/main/native/cpp/vision/VisionRunner.cpp

@@ -53,4 +53,6 @@ void VisionRunnerBase::RunForever() {
   }
 }
 
-void VisionRunnerBase::Stop() { m_enabled = false; }
+void VisionRunnerBase::Stop() {
+  m_enabled = false;
+}