Maintenance: Add mandatory field offset markers /* XXXX */ and assertions to Contents headers (part 1: Actors, Effects, Ground, Hotke
Batch #1066 by ragnarok-clanker: no function's compiled code changes; checked with 70 compiled unit(s), including every includer of Source/Contents/Actors/RenderObject.h, Source/Contents/CashEmotionMgr.h, Source/Contents/Effects/AttachedEffect.h, Source/Contents/Effects/Effect.h, Source/Contents/Effects/EffectActor.h, Source/Contents/Effects/EffectParticle.h, Source/Contents/Effects/EffectPrimitiveState.h, Source/Contents/Emblems/GuildEmblemReqBundle.h, Source/Contents/Ground/GroundGeometry.h, Source/Contents/Ground/GroundSpatial.h, Source/Contents/Ground/GroundWaterState.h, Source/Contents/Ground/TerrainHeight.h, Source/Contents/Hotkeys/EmotionHotkeys.h, Source/Contents/Hotkeys/HotkeyInfo.h, Source/Contents/Hotkeys/UserHotkeyMgr.h, Source/Contents/InstantVar.h.