cmake: Make directory before copying file

Fixes the install_obs_data_file cmake helper function to be more
consistent across operating systems.

cmake/Modules/ObsHelpers.cmake

@@ -507,12 +507,20 @@ endfunction()
 function(install_obs_data_file target datafile datadest)
 	install(FILES ${datafile}
 		DESTINATION "${OBS_DATA_DESTINATION}/${datadest}")
+	add_custom_command(TARGET ${target} POST_BUILD
+		COMMAND "${CMAKE_COMMAND}" -E make_directory
+			"${OBS_OUTPUT_DIR}/$<CONFIGURATION>/data/${datadest}"
+		VERBATIM)
 	add_custom_command(TARGET ${target} POST_BUILD
 		COMMAND "${CMAKE_COMMAND}" -E copy
 			"${CMAKE_CURRENT_SOURCE_DIR}/${datafile}" "${OBS_OUTPUT_DIR}/$<CONFIGURATION>/data/${datadest}"
 		VERBATIM)
 
 	if(CMAKE_SIZEOF_VOID_P EQUAL 8 AND DEFINED ENV{obsInstallerTempDir})
+		add_custom_command(TARGET ${target} POST_BUILD
+			COMMAND "${CMAKE_COMMAND}" -E make_directory
+				"$ENV{obsInstallerTempDir}/${OBS_DATA_DESTINATION}/${datadest}"
+			VERBATIM)
 		add_custom_command(TARGET ${target} POST_BUILD
 			COMMAND "${CMAKE_COMMAND}" -E copy
 				"${CMAKE_CURRENT_SOURCE_DIR}/${datafile}" "$ENV{obsInstallerTempDir}/${OBS_DATA_DESTINATION}/${datadest}"