WD Spellbooks

- made script more efficient and smaller
- all spells now check in a small box surrounding where each particle spawns, so visuals are accurate in the sense that touching a particle is what applies the magic, rather than being in a certain range.
- spells only use 1 loop for every spell, simply modifying behavior for type of spell. cuts script from near 600 lines to only 300 lines of code, and makes for less lag.
- the redesign for magic behavior now means that beam spells are accurately represented, where i was forced to make the particles spawn based on width, though power does not affect spawn rate, so spreading a beam too thin is possible, fixing a balancing issue between spheres and beams.
- made more particles spawn depending on power (for spheres)
- added cooldowns affected by spell power, though only at a 50% rate, so spells can still get overpowered, just more reasonably.
- particles are now on server side, so multiplayer looks good.
- finalized Tier 2 spells
- added Barrier magic (Tier 2), unstable matter, official Tier 2 Spellbook recipe, Hardened matter (barrier).