CombatAdditions

This is probably one of the bigger updates (atleast in development time)

• Overhauled the internal Spell casting system
• Added 5/6 Spell Structures (Fallen Star, Church, Woodland Dungeon, Poseidon's Temple and Viking's hut)
• Added ways to unlock 7/8 Tier 3 Spells
• Balanced the Spell costs of all the tier 3 spells and some others
• Added textures for most of the new (and old) items, tho there are still some placeholder items and textures, which will added in the next update (which will hopefully be released by the end of the week)
• Polished the tier 3 spells
• Changed how the spell target block is displayed