Update DUDE_loader.py

Update DUDE_loader.py

Link established to public test set

Refer to v1.06 in DUDE loader

Refer to v1.06 in DUDE loader

Slight change to formatting of answer_variants

qtype update

small patch for answer variants

linked trainvalv3 as annotations

Made kwarg dependent builder configs for loading DUDE, in next step could make nonbinary_to_imdb mode

fix binary memory leakage

binary mode consumes a lot of RAM, added non binary mode

Dataloader supporting trainval - remaining memory issue

close to done for bboxes

renamed and quention's iteration suggestion