message: [CMake] Adds System summary-line
diff: @@ -106,6 +106,7 @@ macro(ContourConfigurationSummary)
  message(STATUS "==============================================================================")
  message(STATUS " Contour (${CONTOUR_VERSION_STRING})")
  message(STATUS "------------------------------------------------------------------------------")
  + message(STATUS "System: ${CMAKE_SYSTEM_PROCESSOR} (${CMAKE_SYSTEM_NAME})")
  message(STATUS "C++ standard: C++${CMAKE_CXX_STANDARD}")
  message(STATUS "Using filesystem API: ${USING_FILESYSTEM_API_STRING}")
  message(STATUS "Using ccache: ${USING_CCACHE_STRING}")
  