chore: import upstream snapshot with attribution

modules/objc/common.cmake

@@ -0,0 +1,11 @@
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Wdeprecated-declarations)
+
+# get list of modules to wrap
+# message(STATUS "Wrapped in Objective-C:")
+set(OPENCV_OBJC_MODULES)
+foreach(m ${OPENCV_MODULES_BUILD})
+  if (";${OPENCV_MODULE_${m}_WRAPPERS};" MATCHES ";objc;" AND HAVE_${m})
+    list(APPEND OPENCV_OBJC_MODULES ${m})
+    #message(STATUS "\t${m}")
+  endif()
+endforeach()