Switch to NamespacedKeys for enchantments

- Switched to using NamespacedKeys for enchantments instead of their names. This means that all properly registered custom enchantments are supported in one go.
- Removed the overengineered enchantment platform stuff. That was built with the idea that every custom enchantment plugin would have their own way of implementing custom enchantments. However, now that I found out that custom enchantments can just be registered using NamespacedKeys, none of this is required anymore.

vanillaEnchantments

@@ -0,0 +1,38 @@
+minecraft:feather_falling
+minecraft:frost_walker
+minecraft:unbreaking
+minecraft:projectile_protection
+minecraft:knockback
+minecraft:respiration
+minecraft:punch
+minecraft:protection
+minecraft:blast_protection
+minecraft:lure
+minecraft:impaling
+minecraft:smite
+minecraft:silk_touch
+minecraft:infinity
+minecraft:thorns
+minecraft:luck_of_the_sea
+minecraft:multishot
+minecraft:vanishing_curse
+minecraft:fire_aspect
+minecraft:depth_strider
+minecraft:flame
+minecraft:piercing
+minecraft:fire_protection
+minecraft:sharpness
+minecraft:power
+minecraft:sweeping
+minecraft:aqua_affinity
+minecraft:binding_curse
+minecraft:bane_of_arthropods
+minecraft:soul_speed
+minecraft:looting
+minecraft:efficiency
+minecraft:mending
+minecraft:riptide
+minecraft:quick_charge
+minecraft:fortune
+minecraft:loyalty
+minecraft:channeling