Majrusz's Progressive Difficulty

+ Majrusz Library dependency added
+ added Fisherman Emblem (rare loot from Fisherman Treasure Bag)
+ added Hermes Boots (rare loot from Undead Army Treasure Bag)
+ added Trident to Elder Guardian Treasure Bag (5% chance with random enchantments and randomly damaged)
+ added Flying End Islands (6 new structures in the end)
+ reduced Bandage regeneration effect time from 6.0s to 5.0s
+ changed Sky Keeper name to End Keeper
+ Flying Phantom structure now is spawning only in The End
+ completely replaced rewards from Flying Phantom structure
+ added 6 End Keepers and 3 Phantoms to protect Flying Phantom structure (they will not despawn)
+ changed Treasure Bag reward for Master Mode Undead Army from 1 to 2
+ Bleeding can not be removed with Milk Bucket now
+ added new Blood Particles for Bleeding Effect
+ reduced Elite Skeleton spawn rate in the Nether by 50%
+ Elite Skeletons now only spawn where Skeletons and Wither Skeletons could spawn in the Nether
+ removed Pillager's Wolf natural spawn (now only spawn in groups with Pillagers)
+ fixed bug with Undead Army spawners spawning in the air
+ fixed bug with Undead Army invalid spawn position in water
+ fixed bug with Zombified Piglins spawning in group with Zombies
+ changed Wither Sword rarity from Common to Uncommon
+ changed some textures (most Treasure Bags, Wither Sword, Bleeding)
+ added lot of new configs and comments to every config
+ lots of code optimization and refactoring