Map config values (or just map option groups)

I'm working on McQoy, which automatically generates config GUIs for mods that use an existing pure-java config library.

Primitives, sections, and lists all work, but I noticed there's nothing in YACL's API that can handle Map<String, T>, which I use very often in my mods for configuration over arbitrary items/tags/screens/biomes/etc.

To work around this, I'm planning to attempt to create something custom, but it'll end up using a lot of internal yacl API and might realistically be quite brittle.

With the exceedingly nice way that list groups are already designed, I reckon you'd know exactly what you're doing here - first-class support for map groups would be greatly helpful!

Start by reading YACL's existing list-group API and the surrounding configuration-group design. Compare those entry points with the Map<String, T> use case described for McQoy, then determine what first-class map groups should support and how completion can be verified through the library's existing API behavior.