Sync bookcase and outfit stand

[Sakura-TA]

Fix for #805
-Register SyncMethod for outfit stand.
-Used transpiler to sync bookcase. It's not very elegant solution though.

[mibac138]

From my testing both of those methods are now synced, so good job on that! They diverge a little from vanilla RimWorld though as the dropped items aren't forbidden (in vanilla they are forbidden). This isn't a major issue, but if you'd want to fix it, you can see DraftedMove_GotoFeedbackPatch for a similar case.
Also I'm not sure if adding a SyncWorker for ThingOwner and only handling one case is a good idea. I think I'd rather have the SyncMethod work on a Building_Bookcase instead of ThingOwner. You can probably achieve this by removing GetDirectlyHeldThings from this.Bookcase.GetDirectlyHeldThings().TryDrop(...). It's pretty hacky but then, a lot of the transpilation is.

    IL_00af: ldarg.0      // this
    IL_00b0: call         instance class RimWorld.Building_Bookcase RimWorld.ITab_ContentsBooks::get_Bookcase()
// remove callvirt GetDirectlyHeldThings
    IL_00b5: callvirt     instance class Verse.ThingOwner RimWorld.Building_Bookcase::GetDirectlyHeldThings()
    IL_00ba: ldarg.1      // book
    IL_00bb: ldloc.3      // result
    IL_00bc: ldarg.0      // this
    IL_00bd: call         instance class RimWorld.Building_Bookcase RimWorld.ITab_ContentsBooks::get_Bookcase()
    IL_00c2: callvirt     instance class Verse.Map Verse.Thing::get_Map()
    IL_00c7: ldc.i4.1
    IL_00c8: ldc.i4.1
    IL_00c9: ldloca.s     resultingThing
    IL_00cb: ldnull
    IL_00cc: ldnull
    IL_00cd: callvirt     instance bool Verse.ThingOwner::TryDrop(class Verse.Thing, valuetype Verse.IntVec3, class Verse.Map, valuetype Verse.ThingPlaceMode, int32, class Verse.Thing&, class [mscorlib]System.Action`2<class Verse.Thing, int32>, class [mscorlib]System.Predicate`1<valuetype Verse.IntVec3>)
    IL_00d2: pop

[mibac138]

nameof(ITab_ContentsBooks.DoRow)?

[Sakura-TA]

Thanks for review. Fixed.

[Sakura-TA]

I think you're right on both counts, I'll try to handle them later.

[Sakura-TA]

Not pretty sure about set forbidden. Maybe I can just set it forbidden to all player factions?

[notfood]

Player should be able to set it to forbidden individually. Would be weird if one toggles it and another gets it forbidden.

[Sakura-TA]

Sorry for misleading. here the problem is that whether we set it forbidden to all factions when drop book/outfit on the ground. for now the code leads to forbidden to all players but the one clicked drop button. You can unforbid it later when the book/clothes is on the ground though.