Revise C++ coding style using clang-format-6.0

Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`.  Use `clang-format` version 6.0.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

Tests/VSWinStorePhone/Direct3DApp1/Direct3DBase.cpp

@@ -101,12 +101,12 @@ void Direct3DBase::CreateWindowSizeDependentResources()
 #if WINVER > 0x0602
   m_orientation = DisplayInformation::GetForCurrentView()->CurrentOrientation;
 #else
-#if PHONE
+#  if PHONE
   // WP8 doesn't support rotations so always make it landscape
   m_orientation = DisplayOrientations::Landscape;
-#else
+#  else
   m_orientation = DisplayProperties::CurrentOrientation;
-#endif
+#  endif
 #endif
   bool swapDimensions = m_orientation == DisplayOrientations::Portrait ||
     m_orientation == DisplayOrientations::PortraitFlipped;