[Decorate] A_SpawnItemEx Flag: Transfer Scale

[NeuralStunner]

SXF_TRANSFERSCALE: The caller's ScaleX and ScaleY are transferred to the spawned actor. This would remove the need for a lot of redundant Decorate code.

[FDARI]

I put it in my big submission. viewtopic.php?f=34&t=30623&p=616940#p616940
Of course, if there is any kind of problem with that package, the feature could be submitted independently as well.
Most recent patch is untested (I don't have the time right now, must leave immediately).