VFileInput miss accept attribute.

[zhang9song]

Hi, my friends,
I found vuetify VFileInput miss accept attribute, when set accept attrubite, it's no used.

vuetify.VFileInput( v_model=("cad_file", None), placeholder="CAD model",outlined=True, accept='image/*' )

I build my own VFileInput class base vuefity.VfileInput, it works well.