This commit introduces the data attribute AUTOSCALE_DISABLED for the
windows implementation for Widget. This will disable autoscaling for this
Widget and all of its children. This is a necessary requirement for some
complex usages utilizing GC. Without disabling autoscaling rendering
artifacts will be introduced when only parts of the GC are redrawn. This
commit serves as starting point to harden this feature before considering
extracting an API out of it.