Make Xcode identifiers in generated project files be the same after each run.

Make Xcode identifiers in generated project files be the same after each run.

From the AppleScript that composes the Xcode projects call a Python script that bases the identifiers on an associated name instead of being random each run like Xcode does. After the Python script reopen the project again in Xcode to have the identifiers sorted (Xcode wants them to be), resulting in the project.pbxproj file being completely different inside but in the IDE the order of files still will be the same.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65478 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775