/sk Command Rework

[erenkarakal]

Problem

The current way the /sk command is written makes it nearly impossible to add new features, fix bugs, or even tell what's going on.
There are also lots of issues created for the /sk command that were untouched for a long time.

Solution

Deletes the old SkriptCommand and SkriptCommandTabCompleter classes and replaces them with a new SubCommand class.
To add a new SubCommand, you create a new class for your command and extend SubCommand:

public class MyCommand extends SubCommand {

	public MyCommand() {
		super("my", "command", "aliases");
	}

	@Override
	public void execute(@NotNull CommandSender sender, @NotNull String @NotNull [] args) {
		sender.sendMessage("You ran this command.");
	}

	@Override
	public List<String> getTabCompletions(@NotNull CommandSender sender, @NotNull String @NotNull [] args) {
		return List.of("tab completions");
	}

}

Then, add your subcommand inside the new SkriptCommand class

For commands that share a lot of code, such as /sk enable | disable | reload, a new ScriptCommand class was added as a utility class.
This approach makes it way easier to work on anything related to the /sk command.

TODO List

• Add /sk help
• Add /sk update
• Add /sk info
• Fix array out of bounds exceptions (Ex, running /sk reload)
• Allow disabling deleted/renamed scripts
• Add proper support for symlink files and folders (Add Support for Symlink Files and Folders in /sk Command #7703, /sk tab completions break in symlinked directories #6825)
• Ignore first hyphen in /sk enable (Ignore first hyphen in /skript enable #7666)
• Fix missing skript command.help.show (Missing skript command.help.show #7606)
• Add support for reloading multiple scripts at once (Multi Script Reload #7569)
• Add a command for reloading the last reloaded script (Easily reload same script #7435)
• Fix missing prefixes (unconfirmed) (Skript errors missing prefix in dev/feature #7297)
• Add a config option for reload notify (Reload Notify Config #7193)
• Parse effect subcommand (parse effect subcommand #6899)
• Fix wrong colors in error messages (Reloading all scripts returns green when errors are encountered #6425)

I created this PR early to get initial feedback on the new structure, and so that people can recommend changes on the old command code. If you have any suggestions for new commands, drop them here.

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Completes: none
Related: none

[Efnilite]

i like the new structure, good work 🙏