feat: ✨ options for game version validation

[KANAjetzt]

Two new options:

disable_game_version_validation

Simple if check in ModManifest

custom_game_version_validation

This option also requires:

• custom_game_version_validation_callable
• customize_script_path

The script at customize_script_path is loaded in ModLoaderStore at the end of _update_ml_options_from_options_resource().
https://github.com/KANAjetzt/godot-mod-loader/blob/541e1d0756fc634bf3de77a11cc9c3074a581e8a/addons/mod_loader/mod_loader_store.gd#L177-L178

The ModLoaderStore instance is passed to this script to allow access during _init().
In this customization script, the custom_game_version_validation_callable can be set.

Example script:

extends RefCounted


func _init(mod_loader_store: ModLoaderStore) -> void:
	mod_loader_store.ml_options.custom_game_version_validation_callable = custom_is_game_version_compatible


func custom_is_game_version_compatible(manifest: ModManifest) -> bool:
	print("! ☞ﾟヮﾟ)☞ CUSTOM VALIDATION HERE ☜ﾟヮﾟ☜) !")

	var mod_id := manifest.get_mod_id()

	for version in manifest.compatible_game_version:
	if not version == "pizza":
		manifest.validation_messages_warning.push_back(
		"The mod \"%s\" may not be compatible with the current game version.
		Enable at your own risk. (current game version: %s, mod compatible with game versions: %s)" %
		[mod_id, MyGlobalVars.MyGameVersion, manifest.compatible_game_version]
		)
		return false

	return true