Helper to Backport Beta Platform Support

[parrots]

Tell us how we can improve Xcodes Running on Beta Life (TM) can be harsh if you need to use a non-beta Xcode for some reason. Xcode is unable to work with a device running the betas because it doesn't have the device support.

What would you like to see? How would you like it to work? There's been a trick for years that you can copy the platform support from the beta Xcode back into any previous version, and then magically you can use an old Xcode with a new beta. Some people also just symlink it. Example:

sudo ln -s /Applications/Xcode11.4.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/13.4 /Applications/Xcode11.1.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

Not sure the UI/UX for this (prompt after installing a beta to copy into your current?), but it would be nice to be able to trigger this somehow, even possibly even have Xcodes manage the process entirely for us.