Uploading to Max package manager

[bboettcher3]

Following these instructions

Package file structure

• Mapper
  • /externals: (.mxe64)
  • /help: help files (.maxhelp)
  • /docs: reference files (.maxref.xml) (adapt from here)
  • /support: dlls and dylibs

TODO

• Edit CI to build the packages for each platform with the correct folder structure
• Merge this branch into main
• Make a release, grab CI artifacts and submit to Max package manager