REQ: Support for HALion's .vstsound format

[MetalMaxMX]

According to https://steinbergmedia.github.io/halion-script-api/HALion-Tutorials-Guidelines/pages/HALion-Libraries.html

HALion allows you to create your own libraries and distribute them as VST Sound files. VST Sound is a Steinberg file format that can be compared to ZIP or ISO files, for example. It contains a file structure with folders and files

[git-moss]

I had a look and so far as I could see the format is not documented and a binary format (it might even be encrypted). So, don't expect that to happen. Nevertheless, I will leave that open.