Deep down internally there was already a name, but no API could
really set it properly.
Here Edje will set the name of the filter based on the part name
or the data item name if relevant.
This creates the new interface
Efl.Gfx.Filter
And the implementation is a mixin (evas_filter_mixin.c):
Evas.Filter
All the filter rendering code has now been moved to this
new file. TODO: Merge image filtering.
Set the proper transparent & alpha flags on the Ecore_Evas,
add a tranparent rectangle and boom, the images are all nice and
transparent. This will fix the bg color in the page evasfiltersref.