add non_digital_submission to assignment
add non_digital_submission to assignment

refs CNVS-15324

no test plan

Change-Id: Ia60a27829ad86e13e1540a0e32c8e2d5bbbd3b0a
Reviewed-on: https://gerrit.instructure.com/46595
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Steven Burnett <a0b450117c5d20a22d5c4d52bb8ae13adee003d8@instructure.com>
QA-Review: Mike Nomitch <74443f6f110b6b7b934c89126258ed3d843d673f@instructure.com>
Product-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>

kyroskoh/canvas-lms,Jyaasa/canvas-lms,instructure/canvas-lms,kyroskoh/canvas-lms,jay3126/canvas-lms,utkarshx/canvas-lms,skmezanul/canvas-lms,eCNAP/CANVAS,HotChalk/canvas-lms,matematikk-mooc/canvas-lms,narigone/canvas,greyhwndz/canvas-lms,eCNAP/CANVAS,venturehive/canvas-lms,whalejasmine/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,utkarshx/canvas-lms,sdeleon28/canvas-lms,redconfetti/canvas-lms,antoniuslin/canvas-lms,SwinburneOnline/canvas-lms,Rvor/canvas-lms,utkarshx/canvas-lms,va7map/canvas-lms,Rvor/canvas-lms,fronteerio/canvas-lms,va7map/canvas-lms,antoniuslin/canvas-lms,roxolan/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,juoni/canvas-lms,shidao-fm/canvas-lms,juoni/canvas-lms,leftplusrightllc/canvas-lms,antoniuslin/canvas-lms,juoni/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,ShreniiNepal/shrenii_lmp,dgynn/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,dgynn/canvas-lms,djbender/canvas-lms,Jyaasa/canvas-lms,sdeleon28/canvas-lms,whalejasmine/canvas-lms,Rvor/canvas-lms,va7map/canvas-lms,kyroskoh/canvas-lms,shidao-fm/canvas-lms,jay3126/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,sdeleon28/canvas-lms,roxolan/canvas-lms,leftplusrightllc/canvas-lms,dgynn/canvas-lms,dgynn/canvas-lms,snehakachroo1/LSI_replica,instructure/canvas-lms,greyhwndz/canvas-lms,matematikk-mooc/canvas-lms,snehakachroo1/LSI_replica,samuels410/greatlakes-lms,SwinburneOnline/canvas-lms,HotChalk/canvas-lms,leftplusrightllc/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,redconfetti/canvas-lms,antoniuslin/canvas-lms,eCNAP/CANVAS,roxolan/canvas-lms,snehakachroo1/LSI_replica,samuels410/greatlakes-lms,ShreniiNepal/shrenii_lmp,sdeleon28/canvas-lms,wrdsb/canvas-lms,juoni/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,efrj/canvas-lms,AndranikMarkosyan/lms,efrj/canvas-lms,narigone/canvas,venturehive/canvas-lms,jay3126/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,Jyaasa/canvas-lms,AndranikMarkosyan/lms,tgroshon/canvas-lms,SwinburneOnline/canvas-lms,tgroshon/canvas-lms,ShreniiNepal/shrenii_lmp,narigone/canvas,instructure/canvas-lms,shidao-fm/canvas-lms,ShreniiNepal/shrenii_lmp,sfu/canvas-lms,skmezanul/canvas-lms,efrj/canvas-lms,fronteerio/canvas-lms,whalejasmine/canvas-lms,efrj/canvas-lms,samuels410/greatlakes-lms,skmezanul/canvas-lms,samuels410/greatlakes-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,greyhwndz/canvas-lms,redconfetti/canvas-lms,tgroshon/canvas-lms,wrdsb/canvas-lms,redconfetti/canvas-lms,instructure/canvas-lms,skmezanul/canvas-lms,djbender/canvas-lms,AndranikMarkosyan/lms,kyroskoh/canvas-lms,tgroshon/canvas-lms,eCNAP/CANVAS,va7map/canvas-lms,grahamb/canvas-lms,utkarshx/canvas-lms,wrdsb/canvas-lms,Jyaasa/canvas-lms,matematikk-mooc/canvas-lms,greyhwndz/canvas-lms,narigone/canvas,Rvor/canvas-lms,snehakachroo1/LSI_replica,SwinburneOnline/canvas-lms,wrdsb/canvas-lms,whalejasmine/canvas-lms,jay3126/canvas-lms,djbender/canvas-lms,shidao-fm/canvas-lms,AndranikMarkosyan/lms