DefaultFileScope should also be able to be set via Blocks

It is not possible with AI2 to store, for example, an image with Canvas in the ASD or in one of the Shared folders AND in the PrivateDir. For this, 2 different apps have to be created, in which DefaultFileScope was previously set accordingly (in the Designer).

However, it is possible to save to both the ASD and one of the Shared folders (at the same time) by setting DefaultFileScope to Legacy.

It should therefore be possible to set DefaultFileScope via blocks as well.
Or the components that can store something should get their own FileScope.

@ewpatton