Configuration for custom events

[TheLimeGlass]

Description

Adds a configuration for registering simple events, ported from Skellett.

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Target Minecraft Versions: any
Requirements: none
Related Issues: #121 (non-closing)

[sovdeeth]

Cool pr!
I am a little worried about users adding async events and then having issues using syntax inside those events (like the chat event in 2.7 betas), but I suppose it's on their heads if they add an async event. Perhaps a warning about that in the file would be good.

edit: Apparently i forgot to save this comment:
You can leave the name blank, which doesn't seem to cause issues but should not be allowed imo:

[sovdeeth]

Looks good, I think you may have missed this bit though (my fault, really):

You can leave the name blank, which doesn't seem to cause issues but should not be allowed imo:

[APickledWalrus]

The implementation seems fine, but I do find myself wondering whether this is something we should add. We may be better off pointing these users to skript-reflect (which we now officially maintain) if they're looking for features like this. Up for debate.