Customize Installation Path Format

Hey folks, thank you for everything you've done in making this and Xcodes.app the successes they are. They're really great tools and I appreciate the work you've done. 🙏🏼

I've got an enhancement request, possibly unreasonable, that would make xcodes fit better into my weird little workflow. Unlike many others, I don't like to rename Xcode.app from whatever name it's been extracted as. So an installation strategy where Xcode.app is renamed to /Applications/Xcode-13.3.1.app won't fly. What I do, which I've never seen anyone else do, is organize builds by their revision string, meaning Xcode 13.3.1 would be installed to /Applications/Xcode/13E500a/Xcode.app.

I won't pretend I have a great reason to do this, I'm just superstitious of renaming Xcode, and I often have a lot of Xcode versions installed. I can also imagine that there are others out there who would benefit from more flexibility in the way xcodes installs versions beyond this specific style, besides the included XCODES_DIRECTORY option. Does this seem like something that would align with the goals of the project?

Review the xcodes CLI's existing XCODES_DIRECTORY installation-path behavior first; the issue names no files or tests. Clarify the supported path-format requirements and acceptance cases, then verify that installing a version preserves the requested Xcode.app layout.