Add "flyingcomponents" special world property

[FileEX]

Merge after #3572

This PR adds a new special world property called flyingcomponents (default is true). This property determines whether the detached components such as doors, bumpers, etc., should respawn after a vehicle is recreated or streamed in. This PR solves a very frustrating and annoying issue where all missing components fall off again after using setElementModel or setVehicleVariant:

Thanks to this property, various car garages and vehicle spawners will be able to look normal without flying components around

[Dark-Dragon]

Again I'll have to point out that this to me seems like more of a bug-fix-scenario, rather than a special-world-property-scenario. What about the current behavior is desirable?

[FileEX]

Probably nothing, but it's better to set it to the current default than for the PR to get labeled as 'backwards-incompatible' and end up stalled for several months, or possibly even years

[TheNormalnij]

Probably nothing, but it's better to set it to the current default than for the PR to get labeled as 'backwards-incompatible'

It won't. Current state is bugged

[FileEX]

Probably nothing, but it's better to set it to the current default than for the PR to get labeled as 'backwards-incompatible'

It won't. Current state is bugged

Done

[Fernando-A-Rocha]

Fine to merge

[botder]

I've fixed defaults in the sync structures where you used false instead of true for this new special world property.