Merge topic 'env-init-configs' ef56eefc9b cmake: Allow CMAKE_CONFIGURATION_TYPES to be set by environment variable e216b9bbd3 cmake: Allow CMAKE_BUILD_TYPE to be set by environment variable 6986a382a9 Help: Document when CMAKE_BUILD_TYPE and CMAKE_CONFIGURATION_TYPES are set e96169a3ec Help: Cross-reference CMAKE_CONFIGURATION_TYPES from CMAKE_BUILD_TYPE 03bd9c4c10 cmMakefile: Add helper to initialize CMAKE_CONFIGURATION_TYPES Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !6291