feat: ✨ scan zips before loading

[KANAjetzt]

Optional scanning feature for mod ZIP files before they are loaded into the game.

Please note:
This feature is not a security measure. It simply scans gd and tscn files for specific disallowed strings.

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Changes include:

• New Function: _ModLoaderFile.scan_zip(zip_path: String)

  • Scans a ZIP file for disallowed content.
  • Returns true if disallowed content is found, false otherwise.

• New ml_options Variables with default values:

  • enable_mod_scan
  • disallowed_strings_in_script_files
  • disallowed_strings_in_scene_files
  • allowed_file_extensions

• enable_mod_scan is disabled by default to avoid increasing loading times and potentially restricting the scope of modding.