Level HP

Percentage and configuration update!

Fixed an issue where the extra health gain temporarily disappeared when respawning
Fixed the incomplete introduction of some gamerules
The experience value obtained by any non-command will only be >=1
Added the function of multiple upgrades
Added a large number of custom percentage configuration values
Added the function of randomly increasing or decreasing HP-exp (requires configuration)
Added the function of gaining exp according to the change of biological blood volume (requires configuration)
Added the configuration of blood return level when upgrading to replace the function of original switch upgrade and return blood
Added the function of death loss level (requires configuration)
Added the function of gaining experience points according to the player's level (requires configuration)