Lunge fix and new spear enchantment

The lunge enchantment should be a decently rare treasure enchantment, but make it take no durability from the spear, like riptide on the trident, especially since there are way better methods of transportation. Also, just like how the mace has density, the spear should have a very similar enchantment that applies a multiplier based on velocity. Since the spear is extremely easy to obtain, it should be difficult to unlock its max damage potential. The Stabbing enchantment (just an example name) could be the spears version of the density enchantment, but instead of the density enchantment being a common enchantment that you can get from villagers, the "Stabbing" enchantment should be a rare treasure enchantment, similar to the rarity of wind burst, but not as rare. This would allow a very easy to make weapon have a really high potential for people who grind, and it wouldn't necessarily be for early game. Enchantments such as sharpness and smite should be able to be applied to the spear, but you have to choose between either the "Stabbing" enchantment, or sharpness. Sharpness would be useful for the jab attack of the spear for people who prioritse the range of the jab of the spear over its heavy attack.