Add conditional mod exclusions

[ah-OOG-ah]

Syntax sugar for cases where you may only want to exclude a mod if a config is set (or not set).
Current use case: a transformer in Hodgepodge that works with DAPI, but only if a slow RFB plugin is enabled.

[Alexdoru]

This is wrong :

It doesn't use a supplier and checks for the config right away (might not be loaded

And you can already do that with the current system by simply extending the class and adding your method

[ah-OOG-ah]

This is wrong :

It doesn't use a supplier and checks for the config right away (might not be loaded

To address this I'd have to rework the mod exclusions to use suppliers instead of TargetedMods directly. If someone needs a supplier, we can add that later, but as written it does exactly what I need it to.

And you can already do that with the current system by simply extending the class and adding your method

Yes, that's obviously possible. It's also irrelevant, as the entire system could be (and used to be) implemented in a separate mod. I don't see any reason why these shims shouldn't be in Unimixins itself.

[FalsePattern]

I've modified the mod exclusions on a temporary branch to use BooleanSupplier instead of a raw boolean, this allows the condition to be evaluated during the shouldLoad(Set<ITargetedMod>) call. See:
https://github.com/LegacyModdingMC/UniMixins/tree/decisions-v2
Regular boolean arguments are not supported for this because those can already be done using an if condition, and not calling addExcluded/RequiredMod on the builder if the branch condition is false.

[FalsePattern]

Merged the BooleanSupplier re-implementation into this PR after some discussion in the Discord channel

https://discord.com/channels/741043720241152001/1168018260105637928/1396154842237505618