This PR changes the affinity essence requirements for spell recipes.
AoE no longer requires an Ice Affinity Essence (removing the effective locking of AoE and all subsequent parts at around level 60)
Zone no longer requires an Air Affinity Essence, instead requiring 2500 of any etherium type
Health Boost now requires a Life Affinity Essence
Changed the essence types for some parts; making early-game parts require early-game essences and not something like Fire, and at the same time making late-game parts require late-game essences and not something like Earth
This PR changes the affinity essence requirements for spell recipes.