Global Packs

Backport of 21.0.5

## 20.0.1
+ Added new Config options
+ log_pack_ids -> if set to true, the IDs of all available packs will be logged
+ resourcepacks.enable_builtin -> A list of pack IDs to be enabled, this can be used to enable builtin resourcepacks from mods
* Load order from config is now respected, changed previous behavior, datapacks and resourcepacks will be listed in the same order, as in the config.
  (First in the config = highest priority ingame) The config will be converted automatically if you were on 21.0.1 before.
* Force enabled Resourcepacks, will no longer show twice in the resourcepack list.
* Changed Default config for compat with upcoming CF changes
* Updating will automatically add "<instance folder>/datapacks/" to the config. CF will load datapacks from that folder.
* Renamed config to `global_packs.toml` it'll be renamed automagically.
* Folders in config will be created automatically (now more reliable)