[Feature suggestion] Slot number in info.toml #287

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• I have read the disclaimer.

What would the feature do?

I think it would be a helpful ability to add a new field to the info.toml file: a field to mention which slot the currently-selected mod goes over.

How should it be implemented?

Add a field to the info.toml field to specify information for a slot.

For example, say the config file is like this:
display_name = "Byleth (F): Yukari Takeba"
authors = "MadMax1960"
version = "1.0"
slot = "c03"
description = """
"""
category = "Fighter"

Then, the result would be this:

The slot could be an optional field, as stuff like effects and music wouldn't affect costume slots.