MixinConBooter is a simple coremod to allow Mixin to load configurations specified in mod manifests by adding mods as Mixin containers.
In Forge 1.13+, mixin configurations are usually loaded via the MixinConfigs or MixinConnector manifest attributes. This coremod reproduces this behavior in legacy Forge versions, allowing mods that require early mixins that target Minecraft classes to not have to be coremods.
