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- Adds new generic spell superclasses which aim to group spells such that duplicate code is eliminated, and functions standardised, as much as possible. - Removes numerous spell classes which are no longer required as a result of this change, and replaces them with instances of the relevant generic spell classes. - Changes the remaining spell classes to fit with the new system, mostly by having them extend the generic spell classes. - Completes the transfer of particle spawning to the ParticleBuilder system.