[Feature request] Add support for resumable downloads when downloading macOS

[1alessandro1]

• Guide(s) in question: OpenCore Install Guide
• Link to page(s) with the issue: https://dortania.github.io/OpenCore-Install-Guide/installer-guide/mac-install.html#downloading-macos-modern-os
• Clearly explain the issue(s): users who download the default macadmin scripts to download macOS installer may fail and restart the whole thing if their connection drops
• Include possible fixes: With @dreamwhite I thought if it would be interesting to add support for aria2c. The script works perfectly and it was tested by me and others multiple times, since it just has to download files and resume them if interrupted with Ctrl+C, by mistake or for faulty connection. I'm opening the issue to know if you might be interested to add the option to use a fork of the original script, maybe as an additional way to download the installer for those with unstable connections or who use their mobile carriers to download macOS.

[PMheart]

Hello! aria2c will work, while I do not think that we are supposed to teach users that here.

[1alessandro1]

Hi, I thought aria2c could provide a more resilient solution, so it could've been best to at least include the option to have it if not replace the stock script which uses curl and is not able to resume anything in case of a connection drop or if servers become unreachable