message: cmake: fix order of headers
  cmake uses filesystem's order which may vary
  unpredictable headers order may cause build failures (primary bindings)
diff: @@ -876,7 +876,9 @@ endmacro()
  macro(_ocv_create_module)
  ocv_compiler_optimization_process_sources(OPENCV_MODULE_${the_module}_SOURCES OPENCV_MODULE_${the_module}_DEPS_EXT ${the_module})
  - set(OPENCV_MODULE_${the_module}_HEADERS ${OPENCV_MODULE_${the_module}_HEADERS} CACHE INTERNAL "List of header files for ${the_module}")
  + set(__module_headers ${OPENCV_MODULE_${the_module}_HEADERS})
  + list(SORT __module_headers) # fix headers order, useful for bindings
  + set(OPENCV_MODULE_${the_module}_HEADERS ${__module_headers} CACHE INTERNAL "List of header files for ${the_module}")
  set(OPENCV_MODULE_${the_module}_SOURCES ${OPENCV_MODULE_${the_module}_SOURCES} CACHE INTERNAL "List of source files for ${the_module}")
  # The condition we ought to be testing here is whether ocv_add_precompiled_headers will
  