message: Added warning message if cmake version is below 3.8 or host toolset is not set to x64 on windows
diff: # Minimum CMake required
  +cmake_minimum_required(VERSION 3.5)
  +
  if(WIN32)
  - cmake_minimum_required(VERSION 3.8)
  + if(${CMAKE_VERSION} VERSION_LESS "3.8")
  + message(WARNING "Your current cmake version is ${CMAKE_VERSION} which does not support setting the toolset architecture to x64. This may cause \"compiler out of heap space\" errors when building. Consider upgrading your cmake to > 3.8 and using the flag -Thost=x64 when running cmake.")
  else()
  - cmake_minimum_required(VERSION 3.5)
  + if(NOT CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE OR NOT "${CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE}" STREQUAL "x64")
  + message(WARNING "Your current cmake generator is set to use 32 bit toolset architecture. This may cause \"compiler out of heap space\" errors when building. Consider using the flag -Thost=x64 when running cmake.")
  + endif()
  + endif()
  endif()
  # Project
  