Maintenance: Rename placeholder sub_XXXXXX functions to evidence-based names (Lua registration strings, log/error strings, packet ids
Batch #13406 by ragnarok-clanker: no function's compiled code changes; checked with 124 compiled unit(s), including every includer of Source/Contents/Effects/RagEffect.h, Source/Contents/Effects/PowderingEffect.h, Source/Contents/Effects/SpriteParticle.h, Source/UI/Enchant/EnchantUI.h, Source/UI/Guild/UIAgitWnd.h, Source/UI/Window/UINewSelectCharWnd.h, Source/Contents/Actors/Skill.h, Source/UI/UIChangeMaterialWnd.h, Source/UI/Window/UINewMakeCharWnd.h, Source/Contents/Effects/HealEffect.h, Source/Contents/AchievementMgr.h, Source/UI/Window/UISecondCostumeWnd.h, Source/Contents/Effects/LightSphereEffect.h, Source/Contents/Effects/BlastForge.h, Source/Security/NProtectGameGuardMgr.h, Source/Contents/Effects/MapChainEffect.h, Source/Utility/Math/Int64Math.h.