Better custom-names feature

[Lemvs]

Major change

• I added the ability to set custom names for specific features, as the current system wasn't suitable for all languages. For example, "Chicken" as an entity is translated differently than "Chicken" as an item (Raw Chicken).
  Furthermore, some languages ​​have quite specific variations, so in Polish, for example, "Chicken" as an entity is "Kura," but "Chicken Spawner" is "Spawner Kur," so combining the words "Spawner" and "Kura" as an entity isn't suitable or universal for all languages.

Other changes

• I removed the "give-item-name" option. Spawners were already using their own option, so based on it, I added the same one for eggs and barrels, for greater flexibility in modification.
• By introducing the above option, it was now possible to display upgrades in the egg name.
• I added the ability to display upgrades in egg lore and spawner lore, instead of just in the name, as was previously the case.
• Split the CHUNK_LIMIT_EXCEEDED message into BARREL_CHUNK_LIMIT_EXCEEDED and SPAWNER_CHUNK_LIMIT_EXCEEDED, as they added the unmodifiable word "Barrels"/"Spawners" to the message.

@OmerBenGera I hope you like the change. I'd appreciate it if you could take a quick look at it, as I'd also like to work on some other changes 😀.