INTPYTHON-698 Allow defining embedded model indexes on the top-level model#376

WaVEV wants to merge 3 commits intomongodb:mainmongodb/django-mongodb-backend:mainfrom

WaVEV:INTPYTHON-698-Define-indexes-on-Embedded-Models-in-Top-Level-ModelWaVEV/django-mongodb-backend:INTPYTHON-698-Define-indexes-on-Embedded-Models-in-Top-Level-ModelCopy head branch name to clipboard