
* Combines skill_cast_db, skill_castnodex_db, skill_copyable_db, skill_nonearnpc_db, skill_require_db, and skill_unit_db into skill_db. * Introduces a cached YAML class for quicker lookups. * General cleanups and optimizations. * Includes CSV2YAML conversion tool. Thanks to @Lemongrass3110! Co-authored-by: Lemongrass3110 <lemongrass@kstp.at>