Import Swift Package in iOS

[gotev]

Hi and thank you for this library!

Wanted to test it out in an actual iOS project, but when I tried to import it the usual SPM way from Xcode, I'm getting this:

and that's because to be able to import the library, SPM needs Package.swift and all the Swift package contents to be in the root of the repository. Being this a monorepo, one possible way to solve this is:

• create a new branch (e.g. ios) and switch to it
• delete all the contents from the new branch
• copy all the contents from swift folder from main branch: https://github.com/material-foundation/material-color-utilities/tree/main/swift in the ios branch root
• commit and push to the ios branch
• tag the ios branch
• define a CI workflow to be started on main branch when you want to perform an iOS release, which clones the ios branch in a separate folder, cleans its content, copies over all the contents from the swift folder and then commits, pushes and tags (.e.g 1.0.0-ios).

In that way it will be possible to import the SPM package in Xcode and other SPM packages by specifying the git repo and the ios tag.