`allow_blueprint_reorientation` flag/boolean for `SimpleEntityWithOwner` et al.

[The_LORD_thy_GOD]

Currently, if a blueprint containing a `SimpleEntityWithOwner` is pasted over an existing `SimpleEntityWithOwner` in the world, if the `direction`s would end up being different, Factorio declines to build/red-outlines the entity.

I propose an entity-prototype-flag or boolean be added, applicable at least to `SimpleEntityWithOwner` and potentially to other entities that exhibit this behavior -- `allow_blueprint_reorientation`.

In the default `false` case current behavior would continue unmodified.

In the set `true` case, when this sort of blueprint overlap occurs, the existing entity will be reoriented to the orientation imposed by the blueprint. (All associated events including the new `on_blueprint_settings_pasted` should fire in this case.)

[protocol_1903]

+1, even a simple 'allow-rotation' flag would be appreciated, even if it just shifts an internal value that has no gameplay effect