message: Add check into CMake for bigendian platforms
  And reject compilation if so.
diff: @@ -19,6 +19,12 @@ cable_set_build_type(DEFAULT Release CONFIGURATION_TYPES Debug;Release;Coverage)
  project(fizzy LANGUAGES CXX)
  +include(TestBigEndian)
  +test_big_endian(is_big_endian)
  +if(is_big_endian)
  + message(FATAL_ERROR "${PROJECT_NAME} currently does not support big endian systems.")
  +endif()
  +
  cable_configure_compiler()
  set(include_dir ${PROJECT_SOURCE_DIR}/include) # Public include directory.
  