Archetype flags setter on Object class

[zziger]

Description of the problem

It wasn't a good idea to set flags for every object as in #1551 at least for now, so it would be nice to at least have that setter in Object class

Desired solution for the problem

Either just a property with flags or a property with archetype class with potential some other features Also ymap flags would be nice to have too

Alternatives you considered

No response

Additional context

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Version

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