The Hordes

+ added hordes:not condition

+ added hordes:local_difficulty condition

+ added hordes:advancement condition

+ added gamestages:gamstage condition

+ added hordes:multiple function

+ added hordes:set_spawn_type function

+ added hordes:set_spawn_sound function

+ added hordes:set_start_message function

+ added hordes:set_end_message function

+ added hordes:set_spawn_duration function

+ added hordes:set_spawn_interval function

+ added hordes:set_spawn_amount function

+ added hordes:set_entity_speed function

+ added spawn_types which determine how horde mobs are spawned, and which blocks they can spawn on top of

+ horde scripts can now be an array of script objects instead of a single object

+ hordes:biome now supports biome tags and lists of biomes/tags

+ hordes now spawn based on a seperate random source so the world's random function isn't used which may cause random spawning/worldgen issues. as well as better seeding horde spawn

~ fixed bug that caused cures to be able to cure other players without consuming the item

~ fixed bug that caused crashes when an entity was given the infected effect client side