Script development auto reloading on save

[TheLimeGlass]

Description

• Adds structure to denote automatic script reloading per script.
• Adds entryValidator method to set an EntryValidator for a structure.

auto reload:
        # Cancels out permission node. Define the players that will get reload notifications.
	recipients: "LimeGlass" and "Dinnerbone"

	# Players with this permission will receive reload notifications.
	permission: "skript.reloadnotify"

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Target Minecraft Versions: any Requirements: none Related Issues: https://github.com/SkriptLang/Skript/issues/4313