have self enrollment on by default for new courses, fixes #9219
have self enrollment on by default for new courses, fixes #9219

when creating a course from the new dashboard, have self enrollment on by
default (provided that the account allows self enrollment)

test plan:
1. enable the new dashboard
2. on your root account, allow self enrollment for manually created
   courses
3. create a new course from the dashboard
4. it should have self enrollment turned on
5. on your root account, disallow self enrollment
6. create a new course from the dashboard
7. it should have self enrollment turned off

Change-Id: I79f22b720cf86872b479b3b0fec4bd2a97d08d4e
Reviewed-on: https://gerrit.instructure.com/12225
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Ryan Florence <2d8900489f91ac272fd9ce9d5789db6522668ca2@instructure.com>

instructure/canvas-lms,dgynn/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,AndranikMarkosyan/lms,AndranikMarkosyan/lms,efrj/canvas-lms,shidao-fm/canvas-lms,juoni/canvas-lms,ShreniiNepal/shrenii_lmp,redconfetti/canvas-lms,sdeleon28/canvas-lms,SwinburneOnline/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,Rvor/canvas-lms,matematikk-mooc/canvas-lms,Jyaasa/canvas-lms,SwinburneOnline/canvas-lms,wrdsb/canvas-lms,landonwilkins/canvas-lms,landonwilkins/canvas-lms,nditech/red-innovadores-lms,ShreniiNepal/shrenii_lmp,loganrun/pincan,nditech/red-innovadores-lms,leftplusrightllc/canvas-lms,kyroskoh/canvas-lms,snehakachroo1/LSI_replica,merichar/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,arrivu/hoodemo,parbros/red-innovadores-lms,shidao-fm/canvas-lms,landonwilkins/canvas-lms,tgroshon/canvas-lms,SwinburneOnline/canvas-lms,leftplusrightllc/canvas-lms,arrivu/arrivu-lms,snehakachroo1/LSI_replica,Jyaasa/canvas-lms,arrivu/qibla-ecampus,Jyaasa/canvas-lms,SwinburneOnline/canvas-lms,nditech/red-innovadores-lms,HotChalk/canvas-lms,kyroskoh/canvas-lms,instructure/canvas-lms,va7map/canvas-lms,rup/Tarrax,nditech/red-innovadores-lms,utkarshx/canvas-lms,icelab/canvas,tgroshon/canvas-lms,leftplusrightllc/canvas-lms,antoniuslin/canvas-lms,sfu/canvas-lms,landonwilkins/canvas-lms,greyhwndz/canvas-lms,samuels410/greatlakes-lms,Unow/canvas-lms,ShreniiNepal/shrenii_lmp,leftplusrightllc/canvas-lms,HotChalk/canvas-lms,efrj/canvas-lms,whalejasmine/canvas-lms,wrdsb/canvas-lms,juoni/canvas-lms,loganrun/pincan,Unow/ins,sli7246/canvas_branch,ankithbti/canvas_lms,gbleydon/canvas-lms,icelab/canvas,AndranikMarkosyan/lms,roxolan/canvas-lms,wrdsb/canvas-lms,narigone/canvas,roxolan/canvas-lms,va7map/canvas-lms,efrj/canvas-lms,jay3126/canvas-lms,arrivu/hiring-site,antoniuslin/canvas-lms,usmschuck/canvas,kyroskoh/canvas-lms,sdeleon28/canvas-lms,va7map/canvas-lms,grahamb/canvas-lms,efrj/canvas-lms,snehakachroo1/LSI_replica,shidao-fm/canvas-lms,usmschuck/canvas,narigone/canvas,Jyaasa/canvas-lms,greyhwndz/canvas-lms,arrivu/arrivu-lms,narigone/canvas,redconfetti/canvas-lms,venturehive/canvas-lms,matematikk-mooc/canvas-lms,matematikk-mooc/canvas-lms,sli7246/canvas_branch,djbender/canvas-lms,usmschuck/canvas,fronteerio/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,whalejasmine/canvas-lms,jay3126/canvas-lms,Rvor/canvas-lms,ShreniiNepal/shrenii_lmp,djbender/canvas-lms,skmezanul/canvas-lms,kyroskoh/canvas-lms,sdeleon28/canvas-lms,jay3126/canvas-lms,arrivu/arrivu-lms,redconfetti/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,dgynn/canvas-lms,sli7246/canvas_branch,rup/Tarrax,va7map/canvas-lms,icelab/canvas,sfu/canvas-lms,eCNAP/CANVAS,samuels410/greatlakes-lms,djbender/canvas-lms,venturehive/canvas-lms,wye0220/shindig-canvas,instructure/canvas-lms,arrivu/jigsaw-lms,wye0220/shindig-canvas,AndranikMarkosyan/lms,Unow/ins,tgroshon/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,merichar/canvas-lms,whalejasmine/canvas-lms,tgroshon/canvas-lms,skmezanul/canvas-lms,loganrun/pincan,usmschuck/canvas,grahamb/canvas-lms,HotChalk/canvas-lms,dgynn/canvas-lms,arrivu/qibla-ecampus,fronteerio/canvas-lms,sdeleon28/canvas-lms,gbleydon/canvas-lms,dgynn/canvas-lms,arrivu/jigsaw-lms,sfu/canvas-lms,redconfetti/canvas-lms,arrivu/hiring-site,skmezanul/canvas-lms,utkarshx/canvas-lms,samuels410/greatlakes-lms,eCNAP/CANVAS,parbros/red-innovadores-lms,grahamb/canvas-lms,HotChalk/canvas-lms,antoniuslin/canvas-lms,Unow/canvas-lms,fronteerio/canvas-lms,rup/Tarrax,Rvor/canvas-lms,juoni/canvas-lms,wye0220/shindig-canvas,juoni/canvas-lms,gbleydon/canvas-lms,whalejasmine/canvas-lms,greyhwndz/canvas-lms,arrivu/qibla-ecampus,roxolan/canvas-lms,jay3126/canvas-lms,grahamb/canvas-lms,snehakachroo1/LSI_replica,ankithbti/canvas_lms,greyhwndz/canvas-lms,skmezanul/canvas-lms,arrivu/jigsaw-lms,wimemx/Canvas,Unow/ins,samuels410/greatlakes-lms,djbender/canvas-lms,wrdsb/canvas-lms,merichar/canvas-lms,eCNAP/CANVAS,Unow/canvas-lms,wimemx/Canvas,ankithbti/canvas_lms,Rvor/canvas-lms,shidao-fm/canvas-lms,antoniuslin/canvas-lms,utkarshx/canvas-lms,instructure/canvas-lms,arrivu/hoodemo,arrivu/hiring-site,sfu/canvas-lms,parbros/red-innovadores-lms,narigone/canvas,wimemx/Canvas,eCNAP/CANVAS,utkarshx/canvas-lms,arrivu/hoodemo