MOTP - RPG leveling system

**IMPORTANT!

We've noticed that NeoForge version 1.20.6 isn't very well supported, We've therefore decided that this version will be the last to be exported for this version**

[Updated]

Changed the NBT Tags of the entity to be of type NUMBER not TEXT (this is in order to avoid problems)

[BUG FIX]

Correctly made the NBT tags are the element responsible to control the stats value and not the otherway around , this allows to give weapons or other mod elements the option to make stat modifers by simply just changing the NBT tags